Computer Support Forum

My computer fails to display external HDDs

Question: My computer fails to display external HDDs

My problem:

I have several 2 ext hard drives of different sizes (1TB - independently powered, 120GB) and the same problem occurs with all of them.

When I start up my laptop, the drives will appear in My Computer. I am able to Explore them, everything works perfectly. However, when any of them become disconnected, be it accidentally or through Safely Remove Hardware, they will not be displayed in My Computer upon reconnection. The sound will play confirming that the computer has recognised that a device has been connected, but I am not able to use the drive(s) because Windows Explorer does not show they are there.

I then went to Computer > Manage > Disk Management. None of the devices are listed. I also looked in Device Manager > Disk Drives and all the drives connected to the computer are listed.

I was not sure whether this was a "partition problem" (put in brackets because I don't know what partitions are!) because the devices DO work initially when I start up. It is only when I reconnect that the problem occurs.

It would not be too much hassle to reboot every time this happens, but one of the hard drives has a temperamental cable and gets accidentally disconnected quite frequently.

Additional notes:
- All drives work perfectly on other computers, both upon start-up and reconnection
- The makes of the drives are WD and Toshiba

If there is any other information that I should provide, please ask. Any help would be greatly appreciated. Many thanks.

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Preferred Solution: My computer fails to display external HDDs

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link (This link will automatically start a download of Reimage that you can save to your computer.)

Answer: My computer fails to display external HDDs

What version of Windows and Service Pack level is installed? Have you applied all Windows Updates? Are you using a desktop or laptop?

Also see if this might help How to Cleanup and Remove old USB Storage Drivers

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Can anyone please help and I am getting a little frustrated now.  I can that my external HDDs are showing in Device Manager but they are not showing in My Computer and therefore I am unable to extract any information that they may hold.I am using Windows Vista Home Basic on one of my laptops and Windows Ultimate on my other laptop and PC and get the same problem.Many thanks to you all.JohnnieBoy

Answer:Unable to see my External HDDs in My Computer

You can get into the drive from another program.Try Disk Management.Or try Internet Explorer.The problem is said to be from USB adapters that are not as compatible as you would want. You may need to install a special driver.

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Not sure if this is the correct forum section, so I took a guess. OS is Win7 64 Home Premium with all updates. My problem is more of a hardware related issue though.

I recently moved and reconnected my computer at new residence. I *think* I have it set up the same way as previously, where I didn't experience this problem.

Computer is connected to an APC UPS. There are 4 external HDDs plugged into a separate surge protector that is connected to the APC UPS (the HDD power plugs are "brick size" and won't "fit" side-by-side into the power outlets on the UPS). The HDD USB connectors are plugged directly into USB ports on the rear of the computer.

Now when I boot the computer, it will start the boot process, but stop at the screen where it (would normally) list the drives on the computer. Some of the HDD power lights will be ON at the time, but some won't. The list of drives will not be shown and the computer will restart the boot process and go through the same cycle 3 or 4 times. During this process, some of the HDD power indicator lights will get turned on or off between boots. After 4 boot recycling attempts (almost always on the 4th boot attempt) ALL the HDD power indicator lights will finally get "synced" and be ON, at which point the computer will THEN list all drives and complete the boot process to the Win7 desktop.

It's like all 4 of the external HDDs aren't getting "initiated" fast enough until the 4th cycle o... Read more

Answer:Multiple External HDDs...Computer Recycles During Boot-Up

Falcon mate a couple of things to try first why don't you boot with none of the externals plugged in and see what happens. Then plug them inone by one ans then again see what happens it could be you have a bad one.

for the PSU see this ditty of mine

UsingHW Info PSU

Download HW Info and pick the right bit version - HWiNFO, HWiNFO32/64 -Download - (or copy andpaste this site into the search bar) If you do not need the running informationin the smaller right hand panel close it. In the left hand window click on the+ for the individual device groupings and they will open out to the variouscomponents.

Go on opening out further until you get to the device itself. click on it and itwill highlight. In the right hand window there will be a very detailed descriptionof that device as in brand, speeds model number etc etc These are very detailedand are just what is needed for searching for drivers etc.

To get the PSU volts you need to select the Sensor button circled in yellow inthe pic for PSU testing do the same and scroll down the readout as in my pic towhere it has Nuvoton = yours might be a different section name / title. Postback apic of that please.

If you want a more definitive test see this but pleaseonly use a digital multimeter and not an analogue as they inject typically 9vinto a circuit to test and into a 3.3v or 5v rail - not a good idea!!see thepartial pic of the correct sort of m... Read more

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Okay guys i have a puzzling one for you... I'm running my trusty Emachines E527 with Windows 8 RP. I was playing Minecraft on an external monitor (a TV) and I get a blue screen... no biggie I've dealt with these before. I do a hard reset and turn my computer back on and I don't get an image on my laptop screen. I take a flashlight to my screen ( I've had back light issues before thought it might happen again) and nothing... no image or anything. I decided to take it apart and use a voltage tester on the inverter to see if it's even sending power to it and I don't get a reading anywhere. Furthermore no external monitor hookup will display an image either

This must be a software error... though I don't get a boot splash either..

This one is beyond me.. someone on another forum suggested clearing the cmos. I only have a battery in there on my motherboard but it is soldered to the board itself... kinda hard to clear...

I leave on vacation tonight and I need my laptop so any help would be greatly appreciated....


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Hello.I am trying to use an external display connected via DisplayPort in Windows 10.The display reports no signal.The Settings application lists only the built-in display. After I press "Detect" it recognizes that there is another display but it's "not detected".

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X220, i7, 8GB RAM, 90W non-slim PSU.  Attempting to use an MSI GeForce GTX 560 Ti (1GB graphics card) in a Villagetronic ViDock 4 Plus (ExpressCard to PCIe breakout box).  When using X220 BIOS 1.15, 1.16, or 1.17, the laptop will not display the POST.  Using BIOS 1.11 the laptop boots normally and the ViDock works as expected. When hot plugging the ViDock in Windows 7 x64 with BIOS 1.15, 1.16, or 1.17, Windows reports that GeForce graphic card cannot start because "the device cannot find enough free resources that it can use."  Hot plugging it with BIOS 1.11, the ViDock and GeForce work as expected. When testing BIOS 1.17, I attempted to free up enough address space for the GeForce card by disabling superflous I/O devices in the BIOS (NIC, webcam, fingerprint reader, etc.)--no effect.  I tried removing 4GB of RAM from the system--no effect.  I tried switching to ExpressCard 1.0 signaling in the BIOS--no effect. My hunch is that BIOS > 1.11 are failing to dynamically reallocate PCI resources to map the GeForce's 1GB of RAM.  When the GeForce is attached at power on, the X220 cannot gracefully fail to map the graphics card's RAM, and instead hangs at a black screen prior to the POST. 

Answer:X220 with External GPU fails to display POST with BIOS > 1.11

See this:

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I have been using an external hardrive - WD (Western Digital) 300Geg - to save all my work to and which contains all my personnel information (which recently fell on the floor);
I run windows XP for which there is no further assistance;
the drivers are up to date for the WD.
Despite the fact that the drive continued to function quite okay after falling off the desk I suspect that this may have caused some damage (not sure) because my computer will no longer read the drive among the various hardware in 'my computer'.
Hence I cannot access any of my personnel and necessary information.
I require some direction as to what to proceed with as I am a pensioner and do not have the money to pay exorbitant retrieval fees.

Answer:Computer fails to read external drive

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I have a problem with my Windows 7 computer where I turn it on and it runs for 5 minutes then the display goes black the and computer beeps.
The beep code is long-short short so I think it might be the graphics card.
Intel i7 processor 860.
OS Windows home premium 64 bit
8Gb ddr3 memory.
Vga Nvidia GeForce gt320 1024mb

Answer:Computer display fails then computer beeps

You will need to find out who made your MOBO and then look up (Google) the Beep Codes for that Manufacturer

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Hello. I've a computer with these specs:

Windows 7 Ultimate x64
CPU: AMD FX-8320
Motherboard: ASUS M5A97 R2.0
Memory: 8 GB GeIL DRAGON 1600 (2x4GB)
Graphics Card: Sapphire R9 280X Dual-X
Hard Drives: 1 TB Internal Seagate Barracuda, 1 TB Seagate External
PSU: Corsair VS550 80+ Gold
Case: Sentry GS-6000
Coolin: DeepCool GAMMAXX 300
WiFi adapter: D-Link DWA-510
Monitor: Samsung BW2253+ LCD

All the latest drivers and Windows updates are installed. But, if I set the computer to turn off the display after a while/go to sleep, ad it stays in that state for a while (it works fine after a minute or two) it fails to turn on the display. i.e, the computer is working fine, e.g if you are playing music, it play fine, the display just won't turn on and the only way to fix it is to use the reset button. I read somewhere that turning off PCI-E power save might fix it, but it didn't.

Anyway, thanks in advance.

Answer:Computer fails to turn on display after going to sleep/turning it off

People wishing to help the OP might want to refer to this first:

BSOD when running bittorrent overnight/possible related ext HDD issues

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Been dealing with a dozen different issues to get my new PC working. I'm finally just giving in to repairing Windows XP. However, my Windows XP installation that I want to repair and use is on a SATA RAID. Just 2 HDDs. Despite my motherboard recognizing the healthy RAID, the Windows XP install doesn't.

Of course, I figure it's because it needs the whole F6 + floppy disk thing with SATA and RAID drivers. Well wonderful, because I can't make the floppy because the only PC I can make the floppy with... is the one I'm trying to put Windows XP on. To make matters worse, XFX decided to make it impossible to simply access the SATA and RAID drivers, they need to be directly written to a floppy.

Solution? Virtual floppy disk drive. Ran the "Create RAID Drivers Disk" option on the XFX Driver CD. Transferred the drivers out of the virtual floppy disk. Used nLite to integrate the drivers into a new Windows XP install disc, based off of the one that came with my HP Laptop through my college. Viola, no longer need the F6 + Floppy Disk step.

Except I still get "Setup did not find any hard disk drives installed in your computer.". What the bloody hell? Was that not the entire point of the driver integration?

Motherboard is XFX GeForce 8200. Two 150GB SATA drives in RAID 0 connected. OS is Windows XP SP 2. Motherboard recognizes the RAID but Windows XP SP 2 installer doesn't despite slipstream integration of drivers with nLite.

Answer:Slipstreamed SATA/RAID Drivers on Installation - Setup fails to find HDDs

Well, more wonderful news. Used a public PC to make the RAID disk, since the slipstreamed CD is being a POS. Tried the original CD *and* the slipstreamed CD: Press F6, press S, press enter. Says "Please wait..." then it returns to the previous screen... so I press enter again. Same thing. Thought maybe the diskette was FUBAR. So I used a blank one and it responded with not finding a "txtsetupOEM" or some such, which is good, because that's true. Except that means it's clearly finding it on the RAID diskette but it chooses to be a ***** and not do anything more than that.

So this is bloody pissing me off because I haven't had a single thing succeed here. If anyone has any suggestions, I'd love to hear them, because I'm 100% out of ideas.

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Good evening,I have an external hard drive from Western Digital and 2 different computers: a Mac and a PC. Whenever I plug my HDD into my Mac, I cannot add/move/remove files; it only works when it is connected to the PC. I think this is because my HDD is formatted in NTFS, like my PC and that Mac uses a different kind of formatting.I was wondering if there was an easy way for me to transfer file from my Mac to my HDD. I am currently using a 16GB USB key so it is very consuming whenever I want to put stuff on my HDD (I usually transfer about 600GB at a time).Thank you!

Answer:External HDDs with PC and Mac

Not sure what you want to accomplish here...The MAC PC would need an app that will read Windows files and vice versa...Why not just get another external ? ?

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I am trying to find an external hard disk drive of about 1TB capacity or greater but the only ones I can find are not *fully* compatible with Vista x64. I purchased a Western Digital My Book II Premium 2TB drive and it's great but they only supply a 32-bit driver. The drive still works because it connects via USB but I am unable to change the RAID settings or run diagnostics etc. The WD website clearly states that the drive is "Vista compatible" but when I contacted them they said that I should have known it wouldn't be compatible with x64 because I should "assume everything is not compatible with 64-bit Vista".

So I researched the Seagate FreeAgent Pro 1TB drive and contacted Seagate. They told me that the drive should work but that the software is not 64-bit compatible so it sounds like a similar situation.

Does anyone have a high-capacity external HDD working with Vista x64 or can recommend one? It has to be external as it is for my laptop.

And loving it,

[email protected]
(Replace the "SixFour" with numbers to email me)

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I've just completed going through this thread " READ ME FIRST BEFORE ASKING FOR SUPPORT: Basic Spyware, Trojan And Virus Removal" step-by-step on my WinXP Pro OS computer--on which I've attached an external USB HDD for extra network storage.

I'm happy to say that absolutely nothing "bad" was found from all these scans.

I did notice that, since I was booted in the "safe mode with networking support" mode, that my external drive could not be scanned. In hopes of saving some time, can someone tell me just which of these scans I should do once I boot into normal mode in order to ensure that my external drive is also free of "bugs"?

As I said before, I only use this external drive for storage, consisting mostly of game patches & other software package updates that I'd rather not have to go & download again if I ever have to re-format in the future. I can also take it to other computers on my home network & install these updates quite easily by just moving it to another computer.

Should I start the full process as outlined in the above thread while in normal mode now to ensure that all is cleaned?

Answer:Scanning external USB HDDs?

Run a full antivirus scan on this external drive. Use whatever you have for an antivirus application (I assume you have one). And then run any one of the online scanners (in normal boot mode) for a backup check. Then run Ad-aware and have it do a full system scan on that drive (you need to select the drive to be scanned).

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Hi Geeks!

i have a big problem...

i have several external sata HDDs, which have all decided to become invisible and are not showing in 'my computer' they are in the disk management window but are described as 'unallocated' and not initialized.

this is what my toshiba satellite running win7 home reports!

when i try them in my older satellite (win xp) they report they are RAW format?

i have 2 types of external caddies 1 is esata and usb2 the other is usb2 and 3

they were working fine till i tried to access them via the usb3 connection which i bought as a pcmi (?) card for the later model satellite.

there is valuable data on these disks which i have stored on them....

any suggestion please!

Julie :cry

Answer:External HDDs are not recognized

Forgive me for suggesting the obvious, but some times the obvious is overlooked. Try unplugging the external drive, then update your computer's drivers by going here: and try installing the drive after that.

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HiI recently disconnected two of my external hard drives and on reconnecting them find that they have been allocated different drive numbers from their originals. This has meant that my photo organising program ( Adobe Lightroom) can no longer find my photos without my going through the laborious process of reconnecting them with the program.I assume it must be possible to restore the original drive numbers to the HDDs, but have been unable to find out how. Can anyone please help?

Answer:Renumbering External HDDs

drive numbers?Assume you mean drive letters? click here

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Can 2 External HDDs or 2 Thumb Drives work on same PC through USB Possible ?, and copy to each other Possible ?. , will the Window "Delayed Writing Fail" pop up ? Thanks !

Answer:Can 2 or more External HDDs work on same PC

"Can 2 External HDDs or 2 Thumb Drives work on same PC through USB Possible ?"Yes. I have 4 external HDD's and a couple flash drives working simultaneously on my machine."will the Window "Delayed Writing Fail" pop up ?"Haven't seen it yet."Channeling the spirit of jboy..."

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Running Windows 8.1 and File History was working OK for my computer, actually on two different computers worked just fine. (I never could get File History to work with Windows 8). Then suddenly this feature just up an quit. Got a little "red" flag in the Action Center. Using the control panel an "setting" up File History my system says that file history is turned off. I never did turn it off, it seems it just up an turned itself off. But here is the thing, I select my external drive to use for file history and the system says the service can not be started because its disabled or no enabled devices are associated. It "sees" the drive but will not enabled this drive. I have used various windows programs, such as system "turn" on file history. But there seems not to be anything that will fix file history. Been reading here on the forum for help...but it seems all the help is non specific to file history not working. AN also very technical, for a non technical user, on how to fix file history. I have yet to see a simple fix to "make" Windows 8.1 to again run file history.
Why is this SO DIFFICULT to use? It almost takes a computer expert with knowledge on programing to fix weird things like this. I would just like to point and click to backup the computer...but windows is now becoming NON-USER friendly to manage these types of things. Very frustrating.

Answer:File History fails to work and fails to see external drive

Well it has been some time since I posted this issue. So I see NO responses STILL. AN I still have not been able to use File History EVER. It just does not work....period. Widows 8.1.1 install did not even come close of fixing "file History" working again. All I get is: file history and the system says the service can not be started because its disabled or no enabled devices are associated. There is NO user answer anywhere to fix this. I click enable file history. An the above answer pops up every time. File History is crap as far as I am concerned.

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Hello everyone, I have a problem with my external display on my X300 laptop... I have a X300 with WinXP, and a 20" 4/3 1600x1200 external display (Samsung 204B). When I want to use my external display as an extended desktop, it didn't work well... First I configure my display as an extended ... into 1600x1200px resolution. As the ratio isn't 4/3 on the laptop, there is some border at the top and at the bottom of the external screen, consequenly there is an "lift" (when I go down the screen move down.. etc.). It's not very So there is an option into the graphic proprety to set the screen in "full screen : not keeping the proportions". But, in this case, my external screen display an ... triky ? There is still an "lift", but there is also two border on the right and the left of the screen, and the image quality isn't there. It's too deformed to can be read. After some research it appear that my lenovo drivers do not match with the last intel one... But when I try to install the lenovo one ... It didn't work ! (hardware problem). How can I get a working extended desktop into 1440x900 + 1600x1200 full screen ! Thanks for all, and sorry for my poor English...

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Hi again,
I've got a Seagate external 500GB HDD and it has a load of stuff on it that won't fit on my internal one. Now, my friend has me wandering....if you take it apart and take a looksie inside, it should be and MAYBE it wil be an internal SATA. If this is true- I might just have to try this out. If someone could correct me or confirm my thoughts, please reply.

Answer:Are external HDDs Internal secretly?

Yeah external hard drives are exactly the same as internal hard drives but with an enclosure surounding them for protection and connectivity.

You could take it apart and put it inside your PC if you wanted, but depending on how old the External drive is you might find that it is an IDE drive and not SATA.

You can make your own external hard drive if you wan't by buying a regular hard drive and an enclosure and installing the drive in said enclosure. Any decent online computer store should sell hard drives and enclosures.

Anyone else feel free add more information or correct me if I am wrong.

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I currently do File History with 1 external HDD as everyone else does. I have a spare external HDD that is just gathering dust. I wonder if I could do File History with 2 external HDDs? Will I run into trouble if I did?

The idea is that I could do File History with the 2 external HDDs on alternate days, so if the internal HDD and one external HDD happen to die on the same day (very, very unlikely, I know) I lose just one day of backup at the most.

Answer:File History with 2 external HDDs

Answering my own question: I pooled the 2 external HDDs in a single Storage Space in a 2-way mirror configuration for data resiliency. I then use the single Storage Space for File History. Be aware though that the 2 HDDs are reformatted when the Storage Space is created. I am happy with the solution sofar

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I would like to be able to disable Write Caching for both of my external drives. One HDD is a 1TB, FAT32 formatted drive which allows me to disable write caching whereas my 650GB, NTFS formatted drive has the option completely grayed out.

As you can see from these screen shots (click to enlarge them), the drives look very different and for whatever reason, the option to disable write caching on the NTFS drive is not possible. I'm currently running Vista Ultimate x64 and have updated all drivers and BIOS. If anyone has an ideas, I'd be grateful for any information about how to disable this.

Answer:External USB HDDs - Write Caching

I think write caching is disabled for external drives by default under Vista.

Out of curiosity, why do you wish to alter these settings?

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Hi all,

I apologise for the crap title and i accidently posted before I even started!

I was given two External usb HDDs both 80gb each, my friend said they were totally unusable on his laptops they were corrupted but using them on my laptop I successfully formatted and am using them as we speak.
I'm just concerned with whether or not I will lose all i've backed up onto these External HDDs because of them not working on my friend's laptops but working perfectly fine on mine!

Answer:Corrupt External HDDs except when used on my laptop

Congratulations on successfully reviving those HDD's.

You could try this to obtain a reliability report on those HDD's:

I would suggest removing any data that you already have on them, before testing. Some type of copy because the test just might ruin the HDD's.

At the very least back-ups/images/ghosts. I do not think making back-ups would stress them enough to ruin them, but you never know. Your call.

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want to get a reliable external usb expansion hdd with win7/ gateway sx2311. recommendations? thanks!

Answer:what are the good brands of external hdds are out there?

There are several good brands, Toshiba, Western Digital and Seagate spring to mind in no particular order. If you have USB 3 on your computer you should get a USB3 drive. Most of the newer ones are that but you may find some are USB2. Basically you pays your money and you choose. I would look for the longest warranty.

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I have 6 external HDDs which I use for my back ups, problem is, I live in a very dusty area in a semi-basement, so loads of dust comes into the room daily. 2 of these drives are Western Digital Elements, which have a very big open area to vent heat, but dust could easily get in from there. I was thinking of buying anti-static bubble wrap (RED Small Bubble Wrap 300mm 500mm 750mm ANTI STATIC PROTECTION FREE DELIVERY | eBay) to cover the drives when not in use. Any opinions?

On the same note, can I cover my gaming rig when not in use with this same bubble wrap? It has vents on the top of the case, so dust could easily get in.

Thanks for any advice

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so i cant recall exactly when this problem started because i havent connect any external storage to my desktop pc recently. but now no matter what device, be it 2 different WD my passports or a USB stick they all show up in the device manager with driver errors.
My passport ones show as my passport 0748 driver error. both HDDs work in my laptop, all other peripherals work in the USB ports. i attempted to update the drivers, uninstall then reattach and tried to install drivers directly from WD.I have also repaired the registry in case that was causing issues too
nothing seems to help. clearly its causing me much frustration and i would love some help.. thanks
at the same time i found that the PCI controller driver had an error but i was able to find the correct driver and fix it without issue

Answer:All external HDDs have driver errors

Use Drive clean up to remove USB device drive info from the registry
click here

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Sorry if this is posted in the wrong section:
I will be going on vacation to Mexico in December and do not want to bring my two external HDDs with me for the week. I do not want to bring them on the plane.

I have been looking into pogoplug devices and the raspberry pi (making it into a NAS).

I want to be able to access my HDDs securely over the internet. I have low-medium size budget (below $50.00).

What is better pogoplug device or raspberry pi?

I was leaning towards the raspberry pi because I was thinking of getting for other projects in the future.

My main HDD is a 3TB Seagate FreeAgent Goflex Drive.
Both HDDs are mac osx extended.

I do not want to reformat my drives.

What are opinions of the experts/community?


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the disk manager in w7 x64 ultimate wont allow me when i try to make a dynamic disk it says >the operation is not supported by the object.Please help i really want to use that 2hdd enclosure as one volume not two seperate volumes ,please helpp!!!!
doesnt matter if its another way but what i want is one volume to be shown not 2 seperate drives,please ,thanks,its set on the back of the drive to non raid mode ,if i set it to jbod it only shows 1 hdd in w7 and not a volume of both, no!! just one volume!! ,once again help.

Answer:how to get my usb 2.0 external 2 hdds enclosure to be seen as one volume.

Hi, hentai.
You are right, this is the best place for your help request. Hopefully someone will be along who can be of assistance. In the meantime, I'll remove the other post to prevent confusion.

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Does anyone find that when T430 connects with external display using VGA, if you show a white screen, I can find some horizontal jitters. It is not that obvious, but if you show a white screen, or most of screen is white, and you check it carefully, you can see that horizontal jitters. This only happens in external display, not happen in the laptop display. I also have a T420, but I didn't see this problem using VGA to connect with external display.  Does anyone find this similar problem? I doubt whether this is problem about VGA port, or the related driver. VGA should be a analog port.

Answer:External display show minor jitters when T430 connect with external display using VGA

I checked the forum and see this:VGA output noise think what I saw is the exact same problem mentioned in this thread. But how should I fix it?Thanks.

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This is a strange problem .Last night, I wanted to put the computer to sleep, as I always do at night.

The mouse was frozen and the keyboard Sleep function didn't work.

I thought a reboot would solve it, but upon restarting, the computer would not boot.

I went through the Repair Option, Safe - nothing worked.

I decided to do a System Restore with an Acronis Backup image, and that also failed to allow boot.

I thought I might have a bad hdd, and was starting to shut down the comp to replace it, so I unplugged the external drives and all of a sudden it worked. ( after reboot I ran full Diagnostic test and it is fine).

Any idea what could have caused this - BTW : the hdds are now plugged in and everything is fine.

After I unplugged the hdds and rebooted, my CPU went from a normal 5% to 75% - now back to normal.

Last thing: after I rebooted last night, I put the computer to Sleep, only to have it wake up on its own - that problem is also corrected.

I am wondering if a component is starting to fail - hope not, this comp is only 3 months old.



Answer:Solved: External hdds preventing boot

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I want to reach, that every Storage-Device, which gets connected to the computer, is automatically read-only.

In Windows 7 there was an registry hack (StorageDevicePolicies -> WriteProtect) , but in Windows 8 this doesnt work any more.

So what is a suitable alternative?

PS: Not only users must not write on the hard drive, also windows self should not change the Data on the hdd.

Thank you

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Hey there!

the tl;dr is that external hdds keep disconnecting/reconnecting when connected to a certain usb port. the story below might help you guys help me as it kinda shows what I've tried already and when the problems started

when it started/system backstory:
I seem to be having problems with a certain usb port. I have a lenovo y500 laptop with 2 usb ports on the left side, and 1 on the right. I'm not sure if they all support usb 3, but at least one does (I'll look up the specifics on this later/if relevant).

I own several external hdds (some usb2, some usb3) and up until recently, have never encountered any problems with hooking more than 1 up to my laptop. I recently purchased another WD My Book 4TB, and proceeded to hook that one and one of the same type that I already owned (and that has/had worked flawlessly since I bought it months ago), up to my laptop. Everything seemed fine. However, the next time I started up my laptop, with the 2 drives still attached, the new drive attached to one of the left usb ports, started acting up right away. Constantly disconnecting/reconnecting. Which it hadn't done at all the previous day/night, when I had used it for quite a lot of hours.
what I've tried already:
Since I found a lot of IO errors in the event log, I figured it was probably the hdd dying. However, when I hooked up another external hdd today, one that I have fully checked less than a week ago, and it started to do the exact same thing, I figured it was probably som... Read more

Answer:External HDDs disconnect/reconnect on certain USB Port

Most likely a power problem. The rated power of 500ma isn't much and can easily be overloaded. The power circuit to the port in question may be going bad. If so it won't make any difference if the drive is externally powered.

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Hello to everybody; I am new to this forum and regrettably I must make my first post about an infection. I had never had a virus for almost 15 straight years but = (
My brother inserted an infected (or so I suppose) USB stick and shortly afterwards my PC was showing problems:
lots of shortcuts were shown inside my external HDDs instead of the original files
the previous names of all my HDDs (internal and external) were lost and I could only see their default names
even though the free spaces in the external HDDs were correctly shown in Explorer, I couldn't see many of my files. Files and folders in C:/ were left untouched.
lots of error messages like "chrome.exe needs to be updated" or so were popping up
Chrome tabs apparently loaded slower than before.
I was aided remotely by an acquaintance. He directed me to some short .bat file which, he said, I should execute. I executed the file from inside every external disk. The .bat file deleted all the shortcuts but nevertheless I could not see all my folders back. At least the error messages were not showing up anymore. I then resorted to using a restoration point, which also did not fix the main problem. Afterwards, I resorted to performing a Windows 7 (32-bit) fresh install. But alas, I still cannot see all of my folders. And the names of my hard disks are still shown as default and I cannot change them.
I was using AVG antivirus and I am quite frustrated that it didn't warn me about this virus.
Any s... Read more

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Could any kind forum member please help me with this annoying problem?

It is occurring on my Dell Studio XP - running Win7 Pro. Intel® Core™ i5 CPU 650 @ 3.20GHz.

I'm trying to back up to ext hdd. But however I connect one, I mean to whichever usb port, win explorer fails to pick it up. Although the machine does play a sound so I would have thought it would be recognising it at some level.

The problem is not the hdd. I've tried with two different hdds both of which work with other desktops.

This morning I tried the troubleshooter from Control Panel. Result (copied from troubleshooting report) was as follows:

Issues found
Hardware changes might not have been detectedHardware changes might not have been detected Detected
Scan for recent hardware changes Completed

Potential issues that were checked
Windows Update configured to never install driversWindows Update configured to never install drivers
Driver updates aren't automatically installed when detected by Windows Update. Issue not present

And now I am stuck.

Perhaps someone here has come across similar problems before? I would be grateful for advice.


Answer:Windows doesn't find P&P external hdds

Have a look here: down to "Was this helpful- 33 voted yes"Powering Off: It's a simple procedure; may or may not work for you.

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Hey, a while back I posted here with a problem where my mouse unexpectedly started freezing/stuttering, rendering this laptop near unusable. The problem dissapeared after about a week and a half later though. And today, when I went to plug in my external HDD (2TB Western Digital Elements), the mouse stuttering came back...
Why is this? now I have a drive sitting there that I [almost] can't use. I spend most of my time on my laptop rather than my desktop because my sister needs the desktop to play the Sims 3 (had problems with the launcher on the laptop). No mouse stuttering on my desktop though.

Windows 7 SP1 x86
Avira Free Antivirus and Comodo Free Firewall

Intel Core 2 Duo @ 2.26GHz
AMD Mobility Radeon 3650, 512MB
391GB internal HDD

And I also tested my brother's external HDD (1TB WD Elements), and it has the same problem. My portable 500GB Seagate GoFlex drive doesn't cause any stuttering though.

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Hey guys, need some help. I'm at work at the moment, and an issue has arisen that has bothered me before, but I had not had the need to follow up on it. Upon connecting any external hard-drive, my computer fails to acknowledge the drive in My Computer. Disk Management detects the presence of the hard drives, however they are not assigned a drive letter/path. Right-clicking the volume does not allow me to manually assign one (the option is grayed out).

In Control Panel (Devices and Printers) they are given generic names such as "Expansion" or "External HDD". In the Properties menu, information such as "Manufacturer" or "Model Number" or "Description" are apparently "unavailable". They claim to be working correctly.

This issue has affected all external hard drives I have used- a Seagate and a WD. I have attempted connecting them to both USB 2.0 and USB 3.0 ports on my computer but to no avail.

Answer:No External HDDs Functional on Laptop (USB Thumb drives OK)

Quote: Originally Posted by francescocastel

Hey guys, need some help. I'm at work at the moment, and an issue has arisen that has bothered me before, but I had not had the need to follow up on it. Upon connecting any external hard-drive, my computer fails to acknowledge the drive in My Computer. Disk Management detects the presence of the hard drives, however they are not assigned a drive letter/path. Right-clicking the volume does not allow me to manually assign one (the option is grayed out).

In Control Panel (Devices and Printers) they are given generic names such as "Expansion" or "External HDD". In the Properties menu, information such as "Manufacturer" or "Model Number" or "Description" are apparently "unavailable". They claim to be working correctly.

This issue has affected all external hard drives I have used- a Seagate and a WD. I have attempted connecting them to both USB 2.0 and USB 3.0 ports on my computer but to no avail.

You could try uninstalling the hard drive in device manager, unplug the external hard drive and plug it back in again to let windows find the drivers for it again; this might help as I had a similar issue once and this resolved it for me

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I recently updated my system to a 128 GB SSD for my boot drive, and am using an internal 1 TB internal drive for data. I'm using Windows BU/restore for my backups to a 2 TB external drive, and run out of space too frequently. I have a spare 750 GB external drive in good working condition. Can I routinely:
Backup the 128 GB SSD (boot drive) to the smaller 750 GB external HDD
Backup the 1 TB data drive to the 2TB HDD

If this preferred routine is not possible is it possible to span the two external drives so that when the larger drive runs out of space Backup and Restore switches to the second external drive to finish the backup?


Answer:Can I backup multiple internal drives to different external HDDs?

The SSD I would image to the 750GB drive. The data drive I would sync to the 2TB drive. Then you never run out of space. AllwaySync is a good program.

Allway Sync: Free File Synchronization, Backup, Data Replication, PC Sync Software, Freeware, File Sync, Data Synchronization Software

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Toshina R700 fails to pick up external Drives, whether connected directly to that laptop or via a USB hub.
Nothing shows up in Device Manager or Disk Manager.

The laptops are running XP Pro 32 bit.

Mounted drives have been deleted from the registry (HKEY_CURRENT_USER\Software\Microsoft\Windows\Curr entVersion\Explorer\MountPoints2.

I currently have two remote workers with this problem

Answer:Portege R700 failing to pick up external HDDs

Do the external USB HDDs work with other computers?
Can you use the USB ports with other external USB devices?

Did you try to refresh or to reinstall the USB ports once again?
Do that. Remove/delete the USB controllers and USB ports & hubs from device manager and reboot the notebook.
Then the USB ports should be recognized again.

By the way; Win XP needs a installation of all service packs and all patches. I recommend checking this!

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I apologize in advance for the length of this post, but I want to be thorough.

I have an intermittent problem with external (hot swap) hard drive recognition.

I have the following docks:
> Icy Dock MB171SP-B, internal SATA, powered like an internal drive
> Rosewill RX-358 V2 SLV, using eSATA (also has USB 2.0), external power supply
> StarTech SATADOCKU2E, using eSATA (also has USB 2.0), external power supply

These devices are all connected to the following PCIe card, for which the driver is up to date:
> SIIG SC-SA0R11-S1, DP SATA 6Gb/s 4-Port Hybrid PCIe

I have three external hard drives, all GPT:
> Seagate Barracuda ST3000DM001, 3tb, 7200 rpm (data backup #1)
> Toshiba DT01AC300, 3tb, 7200 rpm (data backup #2)
> Seagate ST3320620AS, 320gb, 7200 RPM (older drive, miscellaneous files)

My PC has the following:
> Gigabyte GA-Z77-DS3H motherboard, set to AHCI
> Windows 7 Pro, 64-bit
> C: is a Crucial MX200 250gb SSD (GPT)
> D: (data) is the same model as the backup Toshiba 3tb (GPT)

The Seagate 320gb drive is always recognized quickly in all three docks. When recognized, the 3tb drives will take longer.

But sometimes one of the 3tb drives won't be recognized, and it's happened with both of them. I'll get the Notification Tray balloon telling me the disk's driver has been loaded, but that's all. There's no other message, the drive won't show up in Disk Management or Device Manager, and scanning for hardware changes in Device Manager won't... Read more

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I have a 500GB and a 1 TB internal HDDs on my win 7 professional 32 bit desktop. When I attach a 1TB USB HDD to the machines, it keeps getting recognised and de-recognised. The external HDD works fine on other machines and USB slots are also working fine. Is there some addressing limitation in win 7?

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So I'm having this funny problem as of late with all my external USB HDDs. Basically, the "Safely Eject Hardware" icon no longer appears when the drives are connected, thus I am unable to safely remove it. It used to work, but somewhere along the line, it stopped showing up. I don't recall what, if any, changes were made. The HDDs are SATA drives in external enclosures (two different types).

The drives appear in the "Hard Disk Drives" section of My Computer, and not under "Devices with Removable Storage".

I've tried uninstalling the associated devices from the Device Manager (USB Mass Storage Device, and the listing under Disk Drives). Other USB Media work fine (Flash drives), just not the HDDs.

The drive works fine otherwise, I'm just worried about corrupting data during the disconnect. Basically, it's as if Windows thinks they are internal drives.

Answer:External USB HDDs being treated as internal drive (cannot eject)

Can't remember ever using the "Safely Remove" feature. All I have done since USB devices have come out is just pull the USB cord out.

However, if you need to see if there is a problem; check to see if for some reason that the safely remove feature is hidden. Bring up the "Property Menu" for the task bar then go to the "Notification Area," then check to see if my chance it is hidden.

If that's not the problem check back, and we'll look at other possibilities.

And, BTW "Welcome to the Seven Forums."

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Hi folks, some days ago Iīve bought a new Ideapad U330p, installed Win7-64 bit and installed all drivers. Nevertheless, there is a big issus with the USB 3.0-port in the left side: Although it works fine with an USB-3.0-Memory-Stick, there is no stable connection with external HDDs. When I plug an external disk into the USB3.0 port, Windows connects to the HDD and I can see the files in the Explorer. But after several seconds it automatically disconnects. Sometimes after some further seconds, the HDD reconnects and then disconnects again, and so on...This problem appears with two different external disks (both 2.5'' and USB 3.0 with own short cables). When I plug the HDDs into the USB2-Ports on the right side of the Ideapad, they work fine in USB 2.0-Mode.Beside the orginal drivers from the Lenovo-Homepage I have tried the Intel-Chipset and USB-drivers from the Intel page, but itīs still not working stable. Does anybody know whatīs the problem? Thanks, Robert

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I'm having some problems with some of my external HDDs. I have a 500Gbs WD Caviar Green and a 500Gbs Seagate ST350032, both using a Cooler Master XCraft 360 enclosure. A few days ago, I decided to move 50GBs from D to C using Paragon 2010. I already did this on my laptop without any problems. When I first restarted the PC after all this, I was asked to install some Win Updates. Since then my 2 external HDD stopped being visible in Windows Explorer. At first I thought there's something wrong with my HDDs but then I noticed that there were both visible in Computer Management but had no drive letter assigned. I assigned the letters manually everything went fine till my 1st reboot. Every time I reboot my system, those 2 HDDS have no drive letter assigned and I have to do it manually so that I can use them. Also, if I insert a USB memory stick that is assigned with a letter assigned for my HDDs, if I try to connect them, same thing happens. I also noticed that after moving those 50GBs from D to C, between C and D I have about 95Mbs of free space visible in Computer Management. The partition table looks something like this: C, 95Mbs Free Space(not unallocated), D,E,F,G.Another thing that happens lately (for about 3 months) is that I cannot safe remove my WD My Book Elite. Since I couldn't find a way to fix this, I switched to Quick Removal Policy (Better Performance was set by default for this one). Could this happen because I have too many partitions and driver, although... Read more

Answer:Windows 7 does not assign drive letters to external HDDs

Now that's a long, long paragraph.

I'll be honest, I only skimmed because my feeble mind just can't sort that much out without some help.

Now to your disk drive letter problem:

Try using DiskPart to assign a drive letter.

Let's see what notes I have on using DiskPart

Type following commands. Hit ENTER key after each command.
DISKPART starts the DiskPart program
LIST VOLUME shows drive letter assignment

You are going to want to view the drive letters used by DiskPart.
You are going to use DiskPart's Assign command to assign a drive letter.
type HELP Assign to get help on using the assign command.

You are going to want to run DiskPart from an elevated command prompt.
Command Prompt - Elevated command prompt

Elevated command prompt = Run CMD.EXE as administrator
? WIN key
? Type CMD.EXE (do not hit Enter key)
? In the Programs list, Right-Click on CMD.EXE
? Click on Run as administrator
? YES button

OR for keyboard fans:
? WIN key
? Type CMD.EXE (do not hit Enter key)
? Press CTRL + SHIFT + ENTER key combo
? Press ALT + y in response to UAC (User Access Control) prompt asking to ?allow program ??

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When I attempt to reboot while I have any external HDD (no OS installed) attached to the machine, it will not reboot.  No BIOS screen, no error messages; the screen simply goes to black and will not complete the reboot cycle.  I have to disconnect the HDDs, do a hard shutdown, and power it up again. This happened while I had the original factory HDD in the machine.  I later bought a SSD and installed a clean OEM Windows 10 64-bit, and I still have this same problem.  If I have no external HDD attached, the machine reboots properly. I went into the BIOS and changed the boot device order so that it would look to the internal HDD first, and I still have this issue.

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I'm trying to backup my laptop's internal SSD and two portable WD HDDs onto an external WD HDD. My backups keep failing, and when I check "Computer" at least one of the hard drives has disappeared. I have to disconnect them and reconnect them to get the HDD to show up again. The USB 3.0 item in Device Manager even displayed an error one of them times and I had to uninstall the driver and restart to get it to reinstall. I also went into the power settings and turned off hard drive sleeping and usb device idling.

Why do my hard drives keep disconnecting, and how can I get them to stay connected to backup? Thanks.

Answer:Solved: External HDDs disconnect while running Windows Backup

I suspect that this issue is related to the power supply. You may directly connect to the hard drive with the computer without any USB hub. If it still does not work, un-plug other USB devices and try again.

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Hey all, I'm not sure if this is possible, but I would like to be able to keep a pemanent dock attached to my work computer monitor  (sweet 24" HD display) for my w510 to use as a secondary or even a primary monitor while I'm at work...the issue is that i have an upgraded version of software on my laptop (autocad 2010) compared to what i use at work (autocad Lt 2007) --for certain applications I use 3d rendering and would like to work off of my nice large display when am at work. Is there a way I can switch between my work tower and laptop as far as what is displayed without too much to-do about it?

Answer:how to share an external display with another computer

Most of the 24 inch LCD have multiple video inputs, which means you can get connect two different video source (i.e. desktop, laptop) to the same display, and then switch between with only a few button presses.

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Had some issues with my PC with user profile, so restored a 3 day old acronis true image backup.

now none of my external HDDs are recognised, by Windows or Aome hdd manager either.

USB pens are ok.

hope there is a simple solution, desperately need to get this working


Answer:No external HDDs recognised since restoring acronis true image backup

Reinstall the chipset drivers from motherboard's manufacturer site (or directly from Intel/AMD if you know which chipset you have). Restart your computer and your drives should be detected again. In my old test motherboard the Intel-specific USB drivers fail to detect any device I connect. I had to manually replace them with the standard USB drivers in Device Manager. Click search and type device, then click to Open Device Manager. Expand the USB devices and then right-click on each Intel-specific controller and select Update driver. Select the last option a couple of times until you see a list with devices. Select the standard device from the list and proceed to install it. Repeat it for the remaining Intel-specific devices. Then delete the USB root hub devices (your mouse and keyboard will stop working if they are USB, I had PS/2) and restart your computer. The USB root hub devices will be installed again but now your hard disks will be detected normally.

PS: If you have USB keyboard/mouse delete the devices. When stop working, unplug and re-plug your mouse to enable it again.

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I just got a WD 500GB External HD and I plugged it into the USB port and Windows XP detected it, and said my new hardware is working properly, but I do not see it in My Computer. Does anyone know how I can get it to display the external drive?

Answer:Western Digital 500GB External HD - no display in my computer

Go to Control Panel/Computer Management/Storage/Disk Management then you should see it there then right click and Format... If you are a bit unsure there is a Help section on that page.

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Windows 7 EnterpriseSystem does not see or react to external display when connectedNothing displays when connectedExternal display says nothing connectedTried multiple dongles - same results
Other system that include a VGA connector work just fine to same external display.

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Been googling around for info and haven't been able to pinpoint exactly what makes a enterprise drive more reliable than consumer drives.

I understand consumer demand for bigger drives at lower cost so manufacturers have to cut corners somewhere along the line. What/Where exactly are they cutting and by now much?

Answer:What components make enterprise HDDs more reliable than consumer HDDs?

Interesting question. This link gives some good info

Hard drives are designed with a wide variety of features that can impact data integrity and
system uptime. Some hard drive manufactures may differentiate enterprise from desktop drives
by not testing certain enterprise-class features, validate the drives with different test criteria, or
disable enterprise-class features on a desktop class hard drives so they can market and price
them accordingly. Other manufacturers have different architectures and designs for the two
drive classes. It can be difficult to get detailed information and specifications on different drive

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Hi everyone,  I have bought a Lenovo T570 and a VGA to USB Type-C converter to had an external display on it. The problem is when I lock the computer I need to manually unplug and plug the converter to turn on the external display. Have you an isue like this and do you know how to avoid this ? Thank.

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This computer Vaio running Vista suddenly failed to recognize the DVD drive. When you push the button the light lights but door will not open. Also, under computer the drive is not listed.

When you plug in the external hard drive, the computer sees the drive, loads the driver and in the device manager shows it is working properly but has a exclamation mark next to the name. However, when you look in computer the drive is not listed.

The C drive along with a USB stick work fine.

The computer has been cleaned using AVG and Superspyware. Also, various other aspects have been checked using Advanced System Care. The C drive is 90% full.

I would appreciate any help in this matter.

I guess no one has a clue.

It also will not recognized an external DVD player/writer. BTW, all of these were easily seen on another computer and worked fine.

Answer:Computer fails to see dvd drive and external hard drive.

Josh, you have been warned. Do not double/triple post. Someone will post if they know the problem. If no one has posted in 24 hours, you may double post, not 2 hours later.

(if that is not correct, will a mod please correct me? I'm not sure what the rules are on that)

Is this PATA or SATA? did you check that the connection is firm? your DVD-rom is seperate from your HDD.

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After running my B570 (1068) with an extended display, the unit went into hibernation. On wake-up the laptop screen is indecipherable garbage. The second display will run to show BIOS startup but then reverts to the built-in screen - which is illegible. Toggling the F3 key does not get a good screen. I read another post suggesting this is a hardware failure. What parts have failed?


Go to Solution.

Answer:B570 display fails after dual monitor display

Hi RogerR,
Welcome to Lenovo Community!
I?m sorry to hear about the situation, please let me know if the issue persists even after re-installing the display driver in your B570 Laptop.
Hope to hear back soon
Best Regards
Shiva Kumar

Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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haven't been here for a while because haven't got much time to sit and enjoy the computer how are you guys doing?

well, I believe that vista comes with loads more problems than XP. I messed up my XP because I mess with it, but vista? doesn't even touch it but it messed up by itself! argh.

to make the story short. about 3 hrs ago I went online and presented with 14 new CRITICAL updates from windows update. I picked everything that's under 1MB in size so I can speed up the install process. the last time I tried to install everything, got many problems from some updates refused to install and some are even failing and wants to be re-downloaded only to fail again because the order of installing those stuff isn't correct. nuts. well anyway, so I picked about 6-8 updates if not mistaken. then the computer wants to reboot, so I did let it reboot, and it came back OK. then I left for the bathroom for about 5 minutes, when I came back the screen already go to screen saver mode and when I move the mouse all I see is this garbled display. so I shut the computer down, waited about 10 minutes and turn it on. the problem is worse, the whole screen is white! I can't see a darn thing. it turned black for a while when the windows green bar thingy supposed to came on, but then it goes back to white. geez!

even though I want to roll back those updates so much, how can I do it without being able to see what's on the screen? and I've been rea... Read more

Answer:Solved: display fails to display anything after latest winupdate

What happens if you start tapping F8 immediately on startup what do you get?

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I have a small media server. It's a bunch of drives in a full size tower PC, each formatted individually (i.e. no RAID - NTFS). Right now it's 6 drives, either 4TB or 3TB.

I have a bunch of smaller (1.5TB and 2TB) drives that I'm not using and would like to use to have a backup of the files spread across the 6 larger drives.

Anyone have a good idea of how to do this? Ideally I would like a solution like in the good old CD/DVD backup days where you can tell a backup app to back the whole lot onto CDs and it will span across however many DVDs you need. But for hard drives. It will copy all it can to the first hard drive until it's full, then it will ask me to mount a new hard drive and it will pick up where it left off. Nobody seems to make such a program.

Alternately I can just back up as much as I can to each drive and then pick up where I left off on the next backup drive. But how do I figure out in Windows 7 how many folders I can copy before I try to copy too much for the target drive? Is there a backup utility for Windows like the OS X app Carbon Copy Cloner that tallies the selected backup folders prior to copying them?

Thanks for any advice or thoughts...


Answer:HELP - Backing Up Several Large HDDs to Many Smaller HDDs

There is no easy 1-click option to do this.

One possibility is to setup the smaller disks as a JBOD (Just a Bunch Of Disks) if the BIOS allows that, and the JBOB is sufficiently large to cater for your needs.

An alternative is write a .bat to use robocopy to copy selected data to a selected spare disk. You will, however, need calculate capacity beforehand.

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They make full towers that have large numbers of Drive bays and area for expansion but all the motherboard I've seen only support 4 HDDs (2 on each cable) and 2 FDDs. How can you attach more?

Answer:How many HDDs can you put on a computer

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Just reinstalled windows, now my HDDs are not recognised  in computer, but they show in device manager and BIOS?
Tried reformat and initialize in disk management,  no joy, (not very technical)
When I open the properties tab of the HDs  in ' device manager '
It says ' the device is working properly?

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Recently I reinstalled win7, I think I may of made an error when formatting.

Because now my HDDs are not recognised in ' computer '

But show in 'device manager' & BIOS

I have tried to alter settings in ' disk management ' ie- reformat, assign new letter.

In 'device manager' when I open disk drives and select the properties tab it says, ' the device is working properly '

Answer:HDDs not showing on computer

If you have used a format command then it is possible that all the data is gone.

assuming you are running as an administrator account, right click on the old disk, (or the root folder if visible). Select properties then the security tab, change the owner of the drive to your user name or the administrators group. make sure you check the box to cascade rights to sub-folders and files, for completeness I would then give your user name full access rights to all the drive (folders and files checked again) you may get some errors on any system folders on the drive, ok these and when complete, may take a while dependent of drive size, see if the files are now showing

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If you have ever connected 2 identical ext HDDs and found both work fine independently but not when both plugged in.
Then you may have this unusual problem I just struck.
Bought WD Elements 500GB as a present 3 months ago.
Bought another on special recently.

Whenever one is plugged in first works fine. Second one is not assigned a letter and offline. Reverse the disks and the same applies.

Both where manufactured with the same disk signature!!!!
Changing the disk signature of one solved the problem.

Answer:Ever had a problem connecting 2 "identical" external HDDs?

Possible driver signature problem. Look in storage devices for an error, maybe

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Im trying to figure out what my problem is, just full out crappy harddrives or computer is frying them. Heres my story. I purchased a maxtor 200gb ATA harddrive for my dell computer. My old 40gb in it worked for around 2 years no problem, but i needed more space. After about 6 months with the 200gb, one day windows wont start cuz that sections corrupt. I end up having to send it to seagate and get a seagate 200gb HDD since they bought out maxtor. Work fine until today. I bought half life 2, installed it then i restarted my computer. Then after my bios loaded, it was stuck at the black screen with the flashing cursor. I then flipped out. Then i tryed a repair install to see if maybe a windows file just got misplaced or corrupted during my half life 2 installation. the repair install was a failure so once again, my harddrive is fried. My dell is a compact under monitor style case. So it has a long PSU. There is an exhaust fan on the psu which is place right under the bottom side of the HDD to keep it cool. So overheating was not the issue that caused this. I have narrowed it down to crappy harddrives or electrical issues. The reason i have to believe it may be electrical issues is because the pc has only a 180w PSU (Dell claims there PSUs are low power, and 180 is eq. of a normal 300w ^.^) Anyway, this is powering 1) 1.8ghz P4 socket 478 2) DVD rom drive 3) PCI fx5200 4) 5.1 pci sound card 5) 200gb harddrive. I'd love any input youd like to give on helping me with this situatio... Read more

Answer:Computer Fried 2 HDDs in Less then one year.

Are you sure the hard drive is actually dead? Windows may have broken beyond a repair install. Windows is known to do that, because Windows crashes a lot. Get a bootable Windows, BartPE, or Linux LiveCD that has a disk checking utility (ScanDisk, fsck, etc...) and run a scan on the hard drive. If it returns that the disk is OK, then Windows just got corrupted, else if it does report an error, replace the disk, though you may have a PSU issue. If the fan is blowing on the HDD, it may overheat. If the PSU is weak, it may put out fluctuating or surging power which could damage the drive's circuitry.

Most likely the drive is actually fine, I'd check it first.

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I have:

- ASUS A8V-VM SE Socket 939 Micro ATX Motherboard - UDMA133, SATA
- XP Pro X64

I have 22 ext hdds connected to my computer. Some are USB 2.0, some are firewire and some are SATA.

I also have:

- NORCO-4618 PCI-X / PCI eSATA / SATA II / SATA I Controller Card RAID 0/1/5/10/JBOD
to connect my SATA ext hdds.

I purchased a SATA HUB which doesn't work. I did an RMA and the new one didn't work either.

I've been in contact with the company where I purchased the HUB. They asked me to return the HUB and to also send the controller card to them so they can see why the HUB isn't working with it. I removied the controller card this morning and packaged everything to send it to the company.

When I turned on a USB 2.0 ext hdd, it wasn't recognized by My Computer and there was no connection tone. One at a time, I powered up the other 12 USB 2.0 ext hdds that I have but none of them were recognized by My Computer and there were no connection tones. I checked to make sure that all the connections were solid and gave each a little push to make sure they were completely connected. I rebooted and when I turned on each USB 2.0 ext hdd again, they still weren't recognized by My Computer and there was no connnection tones.

Could removing the Controller Card (which was used to connect my SATA ext hdds) affect my USB 2.0 ext hdds? My firewire ext hdds still work.

Does anyone have an idea as to why the USB 2.0 ext hdds are ... Read more

Answer:USB 2.0 ext hdds are no longer recognized by My Computer

A little more info . . .

When my pc was booting up, I paused it. It generated this info:

Initializing USB Controllers . . Done
USB Device(s): 1 Keyboard, 1 Mouse, 5 Hubs, 1 Storage Device
Device #01: ST332062 *HiSpeed*
01 USB mass storage devices found and configured.Click to expand...

So it recognizes the hubs but not the ext hdds connected to them.

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How do I get a larger hdd into a raid 1 computer? On a computer with a 320gb hdd I want to make it to a 2tb hdd. It is in Raid 1 so do I just add a hdd and let it rebuild and then when that is done add the other 2tb hdd and let it rebuild thus now having a 2tb machine? I have never done this so can anyone help me out? Thanks.

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When I move between home and office, I go into hibernation since sleep mode is unstable. Often when I turn back on the Yoga, the screen remains black but I know the laptop is on and can get the image on the external monitor.Going into the display parameters doesn't help: the laptop display doesn't exist. Same with the F10 key: the external display has become the "laptop display". I have to restart Windows. Any alternative?

Answer:Yoga 900 external display works but laptop display remains black

Hi Kitten,
Welcome to Lenovo Community!
We are sorry to hear that display is not working in your lenovo Yoga 900 laptop.
Please do confirm which operating system is running on your laptop.
Best Regards,
Did someone help you today? Press the star on the left to thank them with a Kudo! If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

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I have a W500 and recently bought a 22 inch lenova monitor 2551p. Catalyst Control Center does not display a Fixed Aspect Ratio option for this new external monitor. I can change the resolution to a fixed aspect ratio on my native screen, but not on the new external monitor. Long story short, a 1024x768 webpage gets stretched across my widescreen monitor and it should not - I should see the black bars on the sides. Is there a resolution to the issue?Does anyone have a direct URL to download and install new drivers?Does anyone have a direct URL to get the latest and greatest Catalyst Control Center?Is there third party software I can use in the place of Catalyst Control Center? I am pretty sure I have all of these things, but want to see if someone knows a work around or newer drivers/software.

Answer:W500 Does Not Display Fixed Aspect Ratio for External Display 2551p

 i am not sure whether the Lenovo LCD that you got, has the fixed aspect ratio and 1:1 mapping option. If it doesn't then there is nothing much you can do from the LCD end.
Which catalyst driver are you using right now?

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Hi, I own a T420s 4171 and have 2 external monitors hooked up to my docking station. That works fine, but when I try to also display my laptop screen (as my 3rd screen), it won't enable it. It seems to only allow 2 viewable screens (2 external monitors OR 1 external monitor + laptop screen). I tested a T420s 4173 and was able to get 3 viewable screens, but not my 4171, even after updating all of the lenovo drivers. I was comparing video card specs (4171 vs 4173) and it looks to be the same. Can someone confirm/deny that I'm able to have 3 screens with my model? Thanks.

Answer:T420s 4171 - 3 display screens (2 external displays + laptop display)?

TE0810 wrote:Hi, I own a T420s 4171 and have 2 external monitors hooked up to my docking station. That works fine, but when I try to also display my laptop screen (as my 3rd screen), it won't enable it. It seems to only allow 2 viewable screens (2 external monitors OR 1 external monitor + laptop screen). I tested a T420s 4173 and was able to get 3 viewable screens, but not my 4171, even after updating all of the lenovo drivers. I was comparing video card specs (4171 vs 4173) and it looks to be the same. Can someone confirm/deny that I'm able to have 3 screens with my model? Thanks.The answer depends on the GPU chipsets in the machine.  If you have the Optimus video chipset, you have two gpus that will drive four external panels.  If you don't have optimus, you are limited to two. What 4171 do you have?  For instance, the 4171-7FU is Optimus and should work.

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Having a very strange (and annoying) issue with the display. I can only see the display on my Twist after connecting it to an external monitor first. If I do not, all I see is a black screen. No cursor, no anything. If I connect it to an external display via the display port to VGA adapter, it works fine. If connect it to an external display and then disconnect my external display, the display will remain on the Twist. However, if I reboot, I lose the screen again until I connect it to an external monitor. I made sure that "PC Screen Only" is chosen in the Fn+F7 option. This is obviously a serious problem. This is for company use and our users will not have a VGA monitor handy with them where ever they go. I checked the hardware manager and all the drivers are installed with no warnings.

Answer:Lenovo Twist display issues - No display unless I connect to an external monitor

Figured out a work around and narrowed down the problem. If I hit the Second Screen key (F7) after booting, it will go PC Only as the first choice and bring up the display on the laptop after a few seconds. The puzzling thing is why it seems to choose the external monitor as the default monitor on boot, even if it is not conected. I've tried running System Updater to make sure that I have all the latest drivers. All the display settings appear to be correct.

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I have a T420 with a Mini Dock Series 3 (433710U).  The External Display is a 30" Dell U3011 monitor connected to the Dock via DisplayPort. As Im dealing with another issue (another thread) the Bios is set for Discrete Graphics only as the Optimus mode currently has a bug which cannot drive this 2560x1600 resolution display.  Now that I have a workaround, I have another problem. When the power savings in Windows7/Power Manager turns the display off (for me its set for 10mins), If I come back 20mins later, shake the mouse, the Dell Display acts like its turning on (LED light turns on blue to indicate signal) and then message flashes on the screen from the Dell monitor stating that its going to sleep.  So now I have a Black display (monitor went back to sleep). I can open the Lid on the laptop (forgot to mention I dont dual display, I just use the 30" exclusively and close the lid on the laptop on the dock) the screen on that shows up. Close the lid again, the monitor does the same thing where it acts like its turning back on and just goes back to sleep.  Someone mentioned a similar problem where they believe the laptop is not sending the correct DPI to the monitor causing it to not be able to display the output.  They mentioned that doing a CTRL+ATL+DEL when the laptop lid is opened, and then closing it again works.  Thats works for me, but only once.  After that, if it sleeps, I have no monitor to use.  Only way to c... Read more

Answer:T420 - external Display doesnt wake from sleep (when power savings shuts display off)

hey Dixit,curious to know, let's say if you uninstall Power Manager and use windows built in power management; does the same issue occur ? also what happens if the external monitor is connected directly into the T420's display and not with the docking station ?

WW Social MediaImportant Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! Follow @LenovoForums on Twitter!Have you checked out the Community Knowledgebase yet?!How to send a private message? --> Check out this article.

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I want to set up a 2TB raid station, but I don't have a lot of money. So I want to know if it would be worth it to save and build a server from scratch, or if it would be alright to just load my current PC with HDDs. Going to use a hardware raid controller running raid 5.

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My computer folder shows nothing, no HDDs or DVD drives. I checked disk manager everything is properly assigned. I can still open everything via typing C or D in the adress bar, but it's quite annoying.
If I plug in my iPod it does show up in the computer folder.

I recently reinstalled windows on a new HDD everything worked normally until yesterday and I can't find anything on google.

any help would be appreciated, thanks in advance.


Answer:[SOLVED] Computer folder not showing HDDs and DVD Drive

Hello Glad to see you here. Hope you have a fruitful stay.

Many people have had this particular problem. I found a really easy way to solve this. This has been posted here.

I hope this fixes your problem. Please stay with us and give us an update.


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I have a hard drive on a new computer with vista on it, and want to move it to another computer which has XP and all my files on it. Can I make the one with vista my main HDD, and then use the other HDD for all my files?

Will the HDD still have vista on it if I put it in the other computer, and the same with the other hard drive?

They are SATA, and the XP computer with all my files has 3 more spaces.

Is this possible?


Answer:Moving 1 HDD to another computer to have dual HDDs, keeping the files?

Yes, But...

The problem when installing a hard drive with Windows on it to another computer, is that all the drivers will need to be installed (ie another computer -different Sound; Video; CPU...)

Now that last one above, CPU that's really the critical one.
If both computers have exactly the same Processor slot on the motherboard then go right ahead.

BUT if you are plugging in the Windows harddrive to another computer with a different CPU chipset, that means you may get one of two possibilities:
1. Won't Boot
2. Won't Boot, and destroys file system (and possible data)

Hmm, that 2nd one doesn't sound good!

What you will need to do is a Windows Repair, before the computer starts up. This will allow Windows to work properly on the other computer.

Obviously the Windows CD and COA product key required. (Activation imminent too)

Also make sure to BackUp First

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I have a weird issue with my G550 (which is out of warranty).  The screen flickers and distorts (fuzzy colours around objects on the screen).   If I flex the case in a certain way the problem goes away, it's hard to describe but if I apply pressure in a certain direction to the back left of the case it solves the issue... but as soon as I stop applying pressure it goes away.  I'm thinking it's a loose connection somewhere between the GPU and the display, but I'm not entirely sure where to look.  If I plugin in external displays they work fine, no flickering or distortion at all.

Answer:G550: Display flickers / distorts. External display fine.

hi deicist,

Welcome to the Lenovo Community.

If the LCD screen flickers when you open or close the lid or if tilt the LCD screen on a certain angle then the problem lies on the LVDS or LCD cable (possibly got worn out by opening/closing the lid alot of times). If you're interested in fixing it, you can get spare parts here:

Disassembly Guide here - (video)

Caution: Please be careful in disassembling your PC as it may contain sensitive parts.

Hope this helps.

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hello everyone i recently bought a thinkpad from a retailer (i think it falls in the category of factory refurbished)i already had it for a few days, then i formatted, partitioned the entire drive and installed winxp on itthen i installed opensuse 11.2added the ati repository, then installed the fglrx-desktop driver (i had the dektop-linux-kernel). - ive read it here: - that i can install the proprietary linux driver from ati (i need a driver optimised for gaming/3d development, not CAD applications)aticonfig --initial did not work, because there was no xorg.conf in /etc/X11/so i ran sax2, it generated a fileafter that i did an aticonfig --initial, then restarted the machineafter that, the lcd display did not power on.attaching an external display works, it even displays the POST with the big lenovo/thinkpad logo.fn+f7 just turns off the external display for a half second then turns it back on. both windows and linux boots without problem, i could even install the official driver from levono), the graphics card is not fried, because i could run the uniengine tropics (from - although it ran realy slow (it should run realy slow because as i understood, this card's official driver is not optimised for gaming) under windows nor the display properties, nor catalyst control center or even everest report any secondary display btw, system specs:t60pcore 2 duo t7200... Read more

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This happens as soon as the VGA adapter is plugged in. Unplugging it does not turn the laptop screen back on. Toggling with the function keys does nothing. Since I cannot see anything I cannot try to adjust/correct display settings (or do anything for that matter, other than turn the laptop off by holding power key down).

The second display works (tested with a different laptop).

History: The external display worked fine with this laptop. We had a power failure yesterday which turned it off. The screen toggled to the laptop successfully (or I did, with the function keys--I don't remember) and I continued working. When power returned I started running into this issue. I reinstalled the display drivers from the original manufacturer disc but the problem persists.

msi A4000, Celeron dual Core T3100, Windows 7 Ultimate x64
NVIDIA? MCP79MVL, GeForce? 8200M G, Shared
External display: Acer LCD, AL 1916C

Answer:Laptop black when external display plugged in, #2 display also dark.

To shut down properly hit the Winkey, then the right arrow, then Enter.

This may be as simple as capacitors overcharged. Shut down, unplug, remove battery. Hold power button down for 20 secs.
Do same for monitor.
Then try.

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2082-RF1 The laptop has had some display issues for a few months.  An external monitor through DisplayPort has always been the way I have viewed content. A few months ago, I tried to view the laptop's screen, and noticed that I could not get it to be viewable.  It was blank.  Disconnecting the external monitor, and restarting, had no effect.Since then, the internal screen has always been blank, whenever I have checked.Additionally, issues started to occur intermittently, with the external monitor signal.-The screen resolution would change upon start-up, and sometimes it would change after start-up. -The screen would blink to blank whenever the mouse wheel scrolled.-The monitor would have pixels sparkle in multi-color  (nice glitch for the holidays) Today, the external monitor stopped showing any content.  It simply gives the message of going into energy saving mode.   I am assuming that the issue is within the laptop, as opposed to the monitor itself, since the internal screen has been non-functional for a few months now.  What would be the best route for troubleshooting?I notice there is noticable dust build-up around the  venting areas, and was considering disassembling in order to fully clean out any dust. Are there any known issues with the video in this model?


Go to Solution.

Answer:T500 (2082)- Display problem - No Display on laptop or external.

Hi, mouserU
What is your operating system? I looked up the Personal Systems Reference for the T500 (2082) (seen here). When you navigate to that page, you can find your machine faster by searching (Ctrl + F) for "T500 2082." In Windows VIsta, this computer had the ability to do switchable graphics from the discrete card to the integrated and vice-versa. I'm not sure whether this ability has carried over through other OSes without aid of a driver (seen here.)
As for troubleshooting, I would first recommend seeing if you can boot the machine by means of another port on the machine, such as VGA, to see if you can get an image over to an external monitor. Not being able to see an image is most likely an indication of a bad video card. One last question for clarification: You can see nothing, not even BIOS, on either screen, correct?

______________________________________________________________________________________________________________Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution!" This will help the rest of the community with similar issues identify the verified solution and benefit from it.

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title basically says it. what gives? i have a 24" lcd capable of 1920x1200 which is driven fine by itself, but in the mode with the internal laptop display on, the resolustion will not exceed 1024x768 in 16 bit on the external monitor... which looks terrible. this is via vga ... not the displayport. i could get the displayport cable though, since my external screen has hdmi. i would just need the converter i guess. but i'm not sure that would make a difference? my intel driver is dated 6/11/2008 ... and i can't seem to update for some reason. again - not sure this has anything to do with it or not.  thanks! 

Answer:x301 external display limited to 1024 x 768 when using interal display

Are you using XP or Vista... if you are using XP, please change the resolution using the Intel display driver tray, rather then the windows display property. 

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Hi folks!After struggling with this problem 2 days ago: Now I have a new problem: I have literally NO DISPLAY!Either the internal LCD or an external LCD monitor provide NO output. It seems like, judging from the HD lights, etc. that the system is booting normally. I'm able to boot into windows and, remembering key combinations, can shut down windows normally (Start key, U, U). So I think the system is booting up just fine. It's just that there is literally NO display. I've even tried to wait until I"m in windows, then open up the display manager (I assume....FN+F7), then scroll down to other video output options to try and force it to use an external monitor....that doesn't seem to create video output, though I'm fairly confident I'm getting the Display Manager to try and switch... Any thoughts?  Thanks! -Stephen

Answer:t400 No Display AT ALL (either internal or external display)--MOBO Components

Hi ElSteve9, This is clearly hardware problem, please contact local lenovo for hardware test.Worldwide Support Center phone list for ThinkPad, ThinkCentre and ThinkStation systems

T61 + X201i

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Hi Guys,  I'm the IT handiman at a local business. Things have been going okay, so they brought me a Yoga 2 Pro that they had abandoned because it's screen went weird so now it only shows colors.  So, when I turn on the computer, the display immediately starts cycling through colors. When I use an adapter to the micro HDMI, I can see the display on an external display. I can even change the display settings to essentially use the yoga as a computer tower log onto the computer like normal and enable RDP so I can get SOME use out of the machine as a server box, but that feels like a waste of a high performance machine. Video.  IDK what's wrong. If it was a graphics card or something, I would think that I wouldn't be able to use the external display. I'm not sure what's up or what to see about trying to order and replace.  Anyone have any idea what I should look at? I can make this laptop into the little print server we need, since it's not good for much else right now, but I'd rather get it back in service as a laptop and use a lower end machine for a simple print server.  Help me? Please? 

Answer:Yoga 2 Display only showing colors. Seems to still work with external display.

I looks like a dead LCD display, or a dead ribbon cable to me, I had a similar issue with my C340, wasn't software related. You can try to contact Lenovo support, they may be able to repair it.

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Hi, I have Thinkpad Edge E330 bought this July, with win8 downgraded to win7. It recently started a problem where the laptop's own display doesn't display anything (just blank) if I don't have external display connected. The external display doesn't have be in use, just connected, and E330's own display works fine. If I disconnect the external display, the E330's own display goes blank also. It doesn't matter what display setting I have. Any advice on this?Currently I'm not able to use my E330 as a laptop at all.

Current laptop: Thinkpad E330 (3345)


Go to Solution.

Answer:Edge E330 display not working without external display connected

Welcome to Lenovo Community Forums!
I?m sorry to hear that display in your Lenovo ThinkPad E330 is not working properly unless you connect it to an external display.
Have you tried using your machine in safe mode? If that works, try rolling back your display drivers or reinstall it.
Go to Lenovo Support page to download the latest drivers, Please click on "Select Product", then in "QUICK PATH" enter E330 and select the exact model depending on the MTM number of your device.
Hope this helps!
Best regards,

Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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Hy everybody :)
So this problem occurs in 95% of time when external display is connected. Picture looks like it has artefacts, and color is all scrambled. Ati tools doesnt detect any artefacts, and restart of the system or waking up after standby "solves" the problem.
BIOS is latest, ram was upgraded from 1 to 2 GB, there is no difference which OS is used or which drivers are used (official or modded).

EDIT: Not long time ago I started playing battlefield2, and this happens often in this game but in no other (HAWX for example)
EDIT2:This corruption of display happens only on primary display, never on external.

So any ideas of how to solve this?



Answer:Satellite A200-23k - display corruption when external display is connected

hi Triu,
do you have changed the setting of the internal display device?
if you are exceeding the refresh rate such strange things will happen...
please try it and use the toshiba driver with the standard settings to test the system.

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I have a G20 running XP Media Centre Edition with an Nvidia GeForce Go 6600. I have been using the 1440x900 setting up until now on the laptop's screen but have just bought a 22" monitor and am using that instead.

The problem is that the resolution of the monitor is 1680x1050 and I can't seem to be able to set that. The only options are 1440x900 or 1600x1200. Does anyone know how I can get the graphics chip to output 1680x1050?

Many thanks

Message was edited by: [email protected]_UK

Answer:Qosmio G20: Setting 1680x1050 display resolution for external display

Hello William

I have no experience with this but somewhere on this forum I have read similar topic. Before you wait here use advanced search option and use ?1680 x 1050? as searched term. I am pretty sure you will find this topic where one guy explained how to set 1680 x 1050 resolution on external monitor.

Good luck!

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First off, If this is in the correct location I humbly apologize in advance. I've been searching like crazy and haven't found anything helpful (I may just not be looking in the right place.)

This may take a bit of explanation so please be patient and bare with me!

I have recently purchased a new laptop and want to be able to use my two external hard drives and a folder on my desktop on my new laptop. I store the majority of my files on each of these drives as well as comics, music, pictures, etc.

Devices Involved:
Desktop Computer:
HP Pavilion HPE Elite 477e
OS: Windows 7 Home Premium 64-bit SP1
CPU: Intel Core i5 650 @ 3.20Ghz
RAM: 8.00 (2x4Gb sticks) Gb Dual-Channel DDR3
Graphics: ATI Radeon HD 5450
Network: Realtek PCIe GBE Family Controller

Laptop Computer:
Toshiba Satellite S855-S5377
OS: Windows 8 64-bit
CPU: Intel Core i5 3210M @2.50 Ghz
Network: Realtek RTL8723AE Wireless Lan

D-Link DIR-825

What I've Tried:
I have went through and made sure that all the sharing options within both Windows 7 and Windows 8 are enabled in Network and Sharing Center. I've also shared the two drives and the folders on the Windows 7 computer. I've attempted to make shortcuts for them on the Windows 8 computer and they randomly work but often times it comes up with an error saying it can't locate the connection.Both computers are actively running Norton 360 (current version) and have went through and made certain that the firewall on both is set to allow it's p... Read more

Answer:Sharing external HDDs between Windows 7 and Windows 8

You didn't mention if you have tried to set up a Homegroup between those two machines.

Setting up a Homegroup will ease up restrictions on file and drive access so you should try that first. If setting up the Homegroup doesn't solve the drive sharing problems there are some adjustments we can try.

Homegroup - Create in Windows 8

You should be aware that Norton can cause problems with sharing in a network unless it is configured correctly.

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I would like to know that If i got an external monitor with usb ports on it and then connect my Macbook Pro 2015 to it via an HDMI cable, can i connect an external hard-drive onto the external display to transfer files to my macbook?

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I have a Dell XPS 13 laptop running Windows 10. I have just purchased a Dell U2515H monitor which I am waiting for delivery for as we speak. I believe the monitor has quiet a few inputs however I am not 100% sure which lead to get to connect them both and which port I use on the Dell Laptop. Looking on the left hand side of my laptop there is a port with a lightning sign next to it, is that called Thunderbolt? and is that my monitor/display port? and what lead do I need? it looks like some sort of micro socket!

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I am very happy with my ThinkPad Yoga S1 and do like very much the digitizer pen capability. It works well (given some calibration issues) when the Yoga works without an external display. However, as soon as an external display is connected, the pen outputs always on the external display (and not the internal).
I have the yoga connected through OneLink Pro, and an external monitor connected to the display port. I am using both the internal screen as well as the external screen in the extended mode (i.e. not duplication). When I use the pen on the yoga screen, the actions appear on the external display (and not on the yoga screen). This is very confusing, as the pen actions don?t appear where I apply them.
I?ve attempted to set the yoga screen as the main screen, but did not have success. Also using DVI instead of display port did not help. I also tried it with three displays (internal, DVI, DP) all in the extended mode (it is nice that these setup as possible by the way), but the pen still it appears on the display port monitor.
In order to use the pen meaningfully, I do have to disconnect all external monitors and work only with the yoga screen.
Anybody has seen this? Is this an issue of the pen driver (all updated to the latest state) or the operating system (Windows 8.1, 64bit)?
Thanks for any help in advance!
Admin edit: Please take note that maybe some issue with date of posts due to merging two similar topics.

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Answer:Thinkpad Yoga: Pen and External Display (pen on wrong display)

Hey hey!Im new here in this forum, i was looking for an answer for my problem, but i couldnt find one.So here is whats going on:I got a brand new Thinkpad Yoga with a One Link Dock and a second monitor.When i try to work with the Wacom pen on the main monitor (the one of the thinkpad yoga) and hold the pen over it, or try to write on it, the coursor instantly sets to the second monitor (the attached one).So i want to have the pen input on my main monitor, while i write on it and got the second monitor attached, like for reading or so.I cant find options in this Windows 8 to fix this issue.Under Linux it wouldnt be a problem, i found heaps of answers for that, but im sadly with windows.If you even got experience with Linux on the Yoga, could you tell me if that works wel and if its possible to dual boot?Thanks and kind regards - Kay

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Hello, i am using a Belinea 2025 S1 as a second display to enhance the Desktop of my R61 ThinkPad (8918DEG). Max. resolution of the ThinkPad is 1680 x 1050 and max. resolution of the Belinea is 1400 x 1050. I tried to configure the system to use both displays with their max. resolution, but for the Belinea only 1280 x 1050 is used. The NVIDIA control panel allows to configure user-specific resolutions. When setting the user-specific resolution to 1400 x 1050 the test-screen appears and everything seems to be fine, but if i close the test-screen the program crashes. I restarted the program immediatedly and was able to change the resolution for the Belinea to 1400 x 1050. The problem is: This setting is gone after i reboot the ThinkPad. Can anyone help?  Note:The system is up to date; e.g. there is no newer version of the NVIDIA Controlcenter available. regards,  Robert    

Answer:Use max display resolution of an external Display with NVIDIA Quadro NVS

why don't you just use the windows display property instead.

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My ThinkPad T500 running 64-bit Windows 7 Professional Edition worked great on and off a mini docking station with 2 external monitors. The dual-display setup allowed me to have more desktop space; when needed, I can take the laptop off the docking station (following undocking steps) and use it anywhere. This convenience no longer holds after upgrading to Windows 10.

With the T500 in the docking station (LCD lid closed), I can use the dual-display setup as in Windows 7. However, after shut-down and remove the T500 off the docking station and the T500 laptop becomes unusable because its LCD display doesn't show anything after boot. (While booting the laptop's display shows the ThinkPad boot logo and then some DOS-mode boot messages and then the windows 10 logo and its dotted spinning wheel; after the initial boot the display went blank and the Windows 10 desktop doesn't come up.)

The only way to make the T500 laptop usable on its own is to go through a "preparation procedure" and here is how the procedure goes: While the T500 is on the docking station in the dual-display setup with the 2 external monitors, open the T500's lid and set its display as the main display and then select to disconnect the other 2 external displays (in the Settings -> System -> Display page); then , in the T500's LCD display, select the shut down. Once the T500 is properly powered off, remove it from the docking station and the T500 can work on its own as a laptop supposed to be. W... Read more

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I've tried searching the forums but haven't been able to find anyone with the same problem, so if a thread already exists and I just failed at finding it please point me in that direction.

I have a Lenovo L440 laptop running Windows 10 1607, it has an Intel HD Graphics 4600 video card which lists the last available driver as 15.40 from the 23rd of June 2017.

It has an issue where I connect a projector and I get the flashing display to indicate another display was detected and connected, but nothing displays out to the projector (which is set to use the correct input). I press the shortcut to duplicate the displays and nothing happens. I go in to display settings, and see 5 displays (give or take depending on the laptop) despite only one external one being connected. If I tell it to use displays 1 and 2, nothing, so disable display 2. Then tell it to use displays 1 and 3, nothing, so disable display 3. Repeat this process enough time, it'll eventually come to the display the projector is configured as (sometimes having to add additional displays to what was being shown originally).

It's OK for me to do this as I'm the IT guy, but it's not OK for the staff to do this.

Here is a sample screenshot from another machine with the same problem. Only one external screen (2 in total) is connected.

Some machines with more up to date video cards such as Intel 540's have had driver updates putting them to 15.46, and the problem is thus resolved. It's back to behaving as expected fo... Read more

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Model:  4389-AN4O/S:  Win 7 64bitW Series DockDisplayPort Connection (also happens using VGA and or DVI)BIOS:  1.27/1.32Monitor:  Lenovo L2440x During power up, power on password screen does not display.  Sometimes it does, sometimes it doesn't.  I've tried modifying the settings in the bios for which monitor it boots to first, and that doesn't seem to fix the issue either. Sometimes I do get a display, but the screen looks horrible.  I've checked cables (even swapped them). Suggestion?  We were able to recreate this on 2 W510's (same config). Jim P.S.  If I can provide any additional data please let me know.  I often just type in my power on password and eventually the monitor comes on and I get my windows log in prompt. 

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My ThinkPad T500 running 64-bit Windows 7 Professional Edition worked great on and off a mini docking station with 2 external monitors. The dual-display setup allowed me to have more desktop space; when needed, I can take the laptop off the docking station (following undocking steps) and use it anywhere. This convenience no longer holds after upgrading to Windows 10.

With the T500 in the docking station (LCD lid closed), I can use the dual-display setup as in Windows 7. However, after shut-down and remove the T500 off the docking station and the T500 laptop becomes unusable because its LCD display doesn't show anything after boot. (While booting the laptop's display shows the ThinkPad boot logo and then some DOS-mode boot messages and then the windows 10 logo and its dotted spinning wheel; after the initial boot the display went blank and the Windows 10 desktop doesn't come up.)

The only way to make the T500 laptop usable on its own is to go through a "preparation procedure" and here is how the procedure goes: While the T500 is on the docking station in the dual-display setup with the 2 external monitors, open the T500's lid and set its display as the main display and then select to disconnect the other 2 external displays (in the Settings -> System -> Display page); then , in the T500's LCD display, select the shut down. Once the T500 is properly powered off, remove it from the docking station and the T500 can work on its own as a laptop supposed to be. W... Read more

Answer:Dual External Display - Messed up Laptop LCD Display

Try turning off fast startup;

Fast Startup - Turn On or Off in Windows 10 - Windows 10 Forums

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My P50 display is great on its own or when I have it connected to an external display and use both.  But once I disconnect the external display the fonts are WAY too small and unreadable.  Any way to fix that?

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So the thinkpad yoga looks great.. When are they going to upgrade the yoga 2 pro to a thinkpad yoga 2.  12.5 screen is to small for my day to day (even with 21" external hooked up.  And I want 500G SSD, Thinkpads are a lot less business friendly then they used to be.. what happened? (long battery would be nice too).Does anyone know where one can find "new release info"?

Answer:Thinkpad Yoga: Pen and External Display (pen on wrong display)

X series have always had a small 12 inch convertible laptop. X41t to X230t have all being around 12 inch. So ThinkPad Yoga has continued the tradition of offering 12 inch screen size. You can easily do the hdd upgrade yourself, i have put a 1 tb ssd in my ThinkPad Yoga, and it has been fantastic. I guess that is the benefit of the ThinkPad Yoga with its 2.5 inch hdd slot, compared to other tablets that use PCI-e or M.2. SSD standards.

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When I awake my computer from sleep mode, one of the data drives is missing (it is gone from This PC (formerly My Computer)). If I go into Device Manager and select Action > Scan for hardware changes then the drive is found and added back to This PC.

The controller is configured to RAID instead of AHCI in the BIOS (because I have a RAID 0 attached). The affected drive is not in a RAID array.

I've seen a lot of descriptions of this problem in my Google search (for different versions of Windows) but none of the solutions apply.

The affected drive is highlighted below:

OS: Win 10 Pro 64-bit
Mainboard: ASUS Z170 Pro Gaming
CPU: Intel i7 6700 (6th gen)
RAM: Corsair 2x8GB DDR4-3000
Graphics: Gigabyte NVIDIA GeForce GTX 950
Sys Drive: Samsung Evo 750 SSD, 250 GB
Data Drives: OCZ Vertex 2 SSD, 60 GB; WDC WD1002FAEX-00Y9A0; WDC WD2003FZEX-00Z4SA0; WDC WD2002FAEX-00MJRA0;
PSU: XFX TS 750W (P1-750S-NLB9)
Bluetooth: Parani UD100 Bluetooth USB Adapter
Logitech G500 mouse, K120 keyboard.

Answer:One of HDDs missing/disappeared after awaking computer from sleep mode

Try disabling Link Power Management in the Bios and in your Power Plan Advanced Options , This used to happen to me on a Plextor SSD and disabling LPM stopped this happening.

Not letting your HDDs spin down in your power plan may help too , ie set to never for testing.

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