Computer Support Forum

Difference between powered and non-powered USB in W510

Question: Difference between powered and non-powered USB in W510

Hi there everyone !

I Didn't find very much information about this issue.. Might be an stupid question, but I need help..

I've been thinking bying of W510. So, is USB3 ports powered ? I'm asking, because in sales ads i've been looking they inform about two USB 3.0, one powered USB 2.0 and one USB2.0/eSATA combo port. So I started to get concerned, is the 3.0 port powered. This is rather important, because I need the superspeed port for video capturing, and my capturing device (Blackmagic Intensity Shuttle) takes it's power from USB.

Thanks beforehand for support !


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Preferred Solution: Difference between powered and non-powered USB in W510

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Answer: Difference between powered and non-powered USB in W510

Hello mate, All usb ports provide power. What they mean by powered is the usb 2.0 port is always powered even when the computer is turned off. This port is in the back and is yellow. The other ports are not powered when the laptop is off but they are when it's on.

__________________________________________________________________________________Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information on it.ThinkPad T510 4313-CTO Windows 8 x64 - Intel Core i7-620M - NVIDIA NVS 3100M - 8GB RAM - 240GB SSD- Intel Centrino Ultimate-N 6300 - Gobi 2000.ThinkPad Helix 3697-CTO Windows 8.1 x64 - Intel Core i7-3667U - Intel HD Graphics 4000 - 8GB RAM- 256GB SSD - Intel Centrino Advanced-N 6205 - Ericsson C5621gw

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 On a w510, would one of these function for a bootable HDD/SSD? eSata cable (eSatap)

Answer:W510 - Is W510 eSata port powered? yes W510 eSata is said to be powered.

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Very strange issue here is happening here. When the laptop T410s is always off before it's docked, so once it's docked I press the power button and no image shows up on the external monitor.  I then open the lid of the T410s, press the power button on the laptop, quickly close the lid and it comes up.  I've tried different docking stations, power supplies and the issue still persisted.  I then tried another Lenovo T410 and it boots fine. Here's the kicker... When the T410s is not powered down while docked and only logged off, then undocked, and then powered down. When it's reseated into the dock and powered up it works fine. It then made me believe there was a Docking profile issue. I've removed the docking profiles and recreated them, since it that didn't work; I even set XP to allow us to manually choose whether it's docked or undocked.  This did not work. Is anyone else experiencing this or have the expertise on this subject? 

Answer:If laptop is powered off on dock, will not display image when powered back on.

I have a T410s with 2 external monitors that I always used. 1x24inch LCD connected using VGA to VGA and 1x26inch LCD connected using displayport to HDMI. It used to be fine until some intel grapics driver update a while back. So I come to believe is the driver fault and/or the internal graphic card lack of capacity. My solution is to setup the monitors the way I like is to change the BIOS to boot up from displayport, and when successful going into the desktop then disable the laptop LCD. Then connect the 2nd LCD, extend the desktop and setup the resolution. From that point on I must always boot up with VGA disconnect then after into desktop, plug in the VGA cable and it will show up fine. If I forget and left the displayport + VGA connected when I bootup, it will fail and I have to do the initial setup again. So something with the displayport/graphic card/graphic memory is making the T410s 'forget' or discard the displayport. or the 1900x1200 resolutions of 2x monitors overwhelm the graphics card memory and it had to made a choice or give up. Most of the time it just goes blank or flash on/off In your case, if you only have 1x external monitor you can just change the BIOS to bootup screen in VGA/Displayport/Dock and when in the dsektop, set to duplicate mode for both screens. Then download this utility called ultramon and use it to setup the extended display setting to your liking, save the profile on the desktop/startup folder. When your T410s bootup, int... Read more

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I have two powered USB 2.0 hard drives that I plan to plug into a powered USB 3.0 hub. I know I won't get the USB 3.0 speed, but should the I also connect each drive's power connection?

Thank you for your help.

Answer:Powered usb external hard drive in powered usb hub


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PC powered up,fan running at normal speed.logged in ,it started as usual then suddenly pwered off completely.Turned off .Checked power source.Disconnected all wires.turned on with no power.Then reconnected all power sources ,turned on power .Fan running at normal speed,,black screen.No further progress.Help

Answer:PC powered up,logged in,screen went black powered off

Lots of Pavilions. Can we have the model number?

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Just found last night... my laptop cooler with USB is still working after I shut down the laptop. But it will not be working if I plug out the 135w charger. Is it normal or not? I tried on my T61. No such issue...


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Answer:135w Adapter plugin..Shut down the W510...USB still be powered

this is normal, you can switch this off in the bios menu under USB option. 

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Hi there

Intuitively one might think using Powered (from the mains) external USB HDD's would require more power from the computer as well compared with those small self powered units.

I've no way to measure this but I'm sure the small units might consume MORE power as the computer has to supply all the power for Disk rotation and the USB I/O controller.

I only ask this because I need to put two large powered USB units (both with 2 X 3 TB Raid 0 HDD's in each unit) on to a USB 3 Hub.
The two HDD units seem to perform perfectly well whether connected to the chargeable port on an HP laptop or the "non chargeable" ones.

The RAID 0 is powered by the HDD itself (internal Hardware RAID) --used RAID 0 for speed -- don't need to mirror etc - I've enough backup if the whole thing goes bonkers. !!

The files on these HDD's are serving music and video so not intensive used -- don't seem to have any problem streaming media from the laptop.

Any engineers out there - curious over what is the actual load (power wise) on the computer if a POWERED USB HDD is used compared to a Self powered one. Note the Hub I'm using is not also powered.


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I just bought the new Lacie Rugged eSATA portable hard drive and I wanted to know? If not it comes with a USB to DC for power?? LINK Last question: Can I boot off of an external hard drive via eSATA if I needed too? I am excited I now have 1TB between my 500GB internal and 500GB external.

Thinkpad T510-4313 CTO | Core i7 620M 2.66 GHz | 4 GB RAM | NVIDIA 3100m 512 MB | 15.6 inch LED HD Plus | Windows 7 Ultimate 64 | 1- TB (2-500 GB 7200rpm) Hard Drive |


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Answer:Is the eSATA in the T510 powered or non-powered?

 macmovieman wrote:I just bought the new Lacie Rugged eSATA portable hard drive and I wanted to know? If not it comes with a USB to DC for power?? LINK Last question: Can I boot off of an external hard drive via eSATA if I needed too? I am excited I now have 1TB between my 500GB internal and 500GB external. The answer would be simple.  I believe the eSATA standard is powered, however if you plug the drive in (without the power connected) and it doesn't work, then you need the external power source. This is to say that not all devices can be powered off the power of the eSATA port, this has more to do with the drive and chipset used by the device. 

Thinkpad T500-2081 CTO | T9400 2.53GHz | 8 GB RAM | ATI HD3650 + Intel GM45 | 15.4" LED WXGA+ | Windows 10 | ATI Catalyst 13.1 (non-switchable)Thinkpad 390x | PII 333 | 256mb ram | NeoMagic 256AV | SVGA LCD | OS/2 v4.52

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Hi there

Intuitively one might think using Powered (from the mains) external USB HDD's would require more power from the computer as well compared with those small self powered units.

I've no way to measure this but I'm sure the small units might consume MORE power as the computer has to supply all the power for Disk rotation and the USB I/O controller.

I only ask this because I need to put two large powered USB units (both with 2 X 3 TB Raid 0 HDD's in each unit) on to a USB 3 Hub.
The two HDD units seem to perform perfectly well whether connected to the chargeable port on an HP laptop or the "non chargeable" ones.

The RAID 0 is powered by the HDD itself (internal Hardware RAID) --used RAID 0 for speed -- don't need to mirror etc - I've enough backup if the whole thing goes bonkers. !!

The files on these HDD's are serving music and video so not intensive used -- don't seem to have any problem streaming media from the laptop.

Any engineers out there - curious over what is the actual load (power wise) on the computer if a POWERED USB HDD is used compared to a Self powered one. Note the Hub I'm using is not also powered.


Answer:Powered USB HDD - vs Self powered USB -- load on computer ?

We can suppose that a portable HD enclosure that has it's own power supply doesn't draw as much current from the 5 volt supply provided by the USB bus.

On a purely practical basis it simply doesn't matter. There are hard limits to how much current a USB port will deliver. USB 2 ports are limited to 500 mA, which is why they can be so bad for charging smart phones & tablets. A USB 3 port supports up to 900 mA.

The load presented to the host is not relevant. The external device either works or doesn't.

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I've just bought an HP base unit, as I had my own TFT monitor I just need to get speakers, according to the user guide these should be powered. Does anyone know if this means they will work better or will not work at all unless they are powered.The machine seems OK but the documentation is dreadful.gedr.

Answer:Speakers- powered or non powered

Powered are better for sound quality and you have seperate bass,trebble and volume control.

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Hello everyone this may sound like a very dumb question but I am interested in buying a USB3.0 Harddrive, which I want to be writing game footage on the fly to it. However is there any difference between read/write speeds of an Externally powered vs. Non Externally powered Hard drives?
Also could someone out there recommend a good 2TB USB3.0 External Hard drive with good Read/Write speeds for recording game play to.
Thank you!

Answer:Externally powered vs. Non Externally powered Hard drive

In general external 3.5 inch drives need power 2.5 inch drives don't.
Read write speeds are limited by the connection type esata, USB 3. USB 2. external power or lack of make no difference.
I am pleased with my USB3 WD MY passport drive comes .n different sizes / colours

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I just got a Rosewill 7 port hub (Model: RHUB-310W). It has its own power supply and I was wondering if I actually need it plugged in or if it will work otherwise. I am planning to have a mouse and 3 external hdds attached permanently and maybe a flash drive, camera, and an mp3 player plugged into it intermittently.

The external hdds have their own power supply but all else don't.

Will I break the hub, my computer, or my peripherals if I don't plug it in? I unerstand if I don't, then the hub will draw its power from the computer, will it be enough for everything I mentioned?

Thanks for any input.
Happy new year!

Answer:Self-powered usb hub

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I've noticed a USB hub on the 7dayshop's web site that sounds as if it would be perfect for my sister. But it says "NB Bus powered only". How will I know if it will be OK for her system?

Answer:what does Bus Powered mean?

Bus powered means it will need the juice from your machine ie: not powered from an external source.Unlike "self-powered" when they have their own power supply

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Question: Powered USB HUB

Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 32 bit
Processor: Intel(R) Pentium(R) CPU G645 @ 2.90GHz, x64 Family 6 Model 42 Stepping 7
Processor Count: 2
RAM: 2012 Mb
Graphics Card: NVIDIA GeForce GT 220, 1024 Mb
Hard Drives: C: Total - 152524 MB, Free - 90127 MB;
Motherboard: ECS, H61H2-M12
Antivirus: Microsoft Security Essentials, Updated and Enabled

Good Day
Have just purchased and connected a powered hub, Canyon CNR-USBHUB06N. After shutting down my PC the green power light remains on and if I try and start my PC using the power button nothing happens. If I
shut off the wall socket for the power to the usb hub, and then shut down my PC the green light is off and I can start my PC with the power button.
Is this the correct way the hub should work?
Can I connect other powered devices, like printers, to the powered hub, or is there some conflict of power between the two?
Many thanks
Dave Rennie

Answer:Powered USB HUB

when the computer shuts down ,the light indicating a usb is plugged in should go off

yes you can connect other devices to the hub

try the hub plugged into a different usb port on the computer

usually when the computer will not boot with usb plugged in it usually means one of the usb is faulty,not necessarily the

powered hub

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Why would I need a powered USB hub?

There must be a purpose?

Problem I have: some USB add ons to hubs (non powered) will just stop working!!
Previously working fine - suddenly not recognised.

Is this to do with the hub not being powered and therefor taking too much resources from the PC??
Would my problems be solved if I got a powered USB hub?

Powered USB hubs: do they take a load off the PC in anyway?


Answer:Why would I need a powered USB hub?

All USB ports use power...the more USBs the more power used ..not sure how many your talking about here but using powered hubs is always advisable

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I had a triple BUNDLE with Comcast --


The TV was a flat screen given to me by a neighbor and which I didn't like so I gave it to a friend.

They came this morning and disconnected the television and so far everything is alright although I am paying more just for internet and phone because NO LONGER A BUNDLE.

So I am advised to get a really cheap TV, because I do miss some of it.





I am afraid to disconnect because I might mess up my phone and internet, but the lights bother me that they're on and there's no TV connected to it.

What to please? Just leave it until I decide to get another used cheap small tv?


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Question: powered usb

I have just fitted a new usb hub (powered) when i first turned on the power to the hub my computer was turned off, but the power light came on. I have now disconnected the power to the hub but had to move my mouse to another usb. Do you think i have a faulty hub,

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Okay here's the deal.I'm going to the US in a week and could get a external hard drive with my pocket money while I'm there. Thing is... Which to get? I'm aiming to get the most possible, 160GB at the LEAST, seeing as it's for saving all kinds of media to it while I board. But most big ones seem to need external power supplies... I can't deal with American plugs... Though I could probably just get an English adapter... Which still leaves the question... Which make is best for external hard drives?I wish PC Advisor had a top 10 external hard drives at the end :(^^Thanks for all your feedback,Bobly

Answer:Ext. HDD, Best ones? Self powered?

Enjoy your (?)holiday, but buy your USB external HD when you return.All external HDs require their own power supply and buying here will avoid a voltage mismatch.If a warranty repair/replacement is needed and the Atlantic lies between you and the retailer you are in trouble.As to the best....?If you buy a ready-to-go, enquire for details first, but why not buy a case with its power supply and put your own choice of HD inside it. That way you know exactly what you have bought.

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hi guys i got all the information here for my power supply can you help me out and tell me if its powerfull enough for what im running.

1st of all its an atx PSU 400 watt
+3.3v +5v +12v -5v -12v 5VSB
28A 40A 17A 0.3A 0.8A 2A

I have 2dvd RW
140 gig HD
radeon x1300 AGP
2x 512 slots of ddr ram
2 case fans

if you could help me id be greafull, also if you no of a good place to get more powerfull PSU's.


Answer:Is my PSU under powered?

I run an Antec 500W on my desktop(sig) and it has three fans and I have no problems.

I'm no expert so I can't say for sure, but it looks fine.

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I've been using a USB-powered hd to transfer files between my computer and media player. All of a sudden my computer won't see it anymore. The media player still sees it and my friend's computer running XP sees it, but mine won't. I've done "Search for new hardware" but got nothing.

Answer:Win 7 Won't See USB-Powered HD

It could be that on the computer that doesn't see it, Windows has simply failed to assign a drive letter to it.
This is not uncommon with external hard drives, even when the drive was previously assigned a drive-letter.

If that is the case, it's a simple fix.

Plug the drive in.
Now go to Control Panel >> Administrative Tools >> Computer Management.
Click on Disk Management in the left pane.

In the right-pane, all the connected drives are represented by a horizontal ribbon.
Look for a ribbon that's the same size as your external drive but has no name.
Right-click it and choose "Change drive letters & paths".
Click "Change".
Pick a drive-letter from the drop-down box, then click 'OK'.

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Question: CD-Rom not powered

When i turn on my computer, the loading bar goes 3/4s of the way then freezes right then. Also, my CD-rom/DVD-rom isnt powered, so im wondering what i can do. Anything that i can do to fix this problem?
Specs of Old computer:
450 Megaheartz
Tobisha DVD-Rom driver
Philips CD burner
126 ram (Something near there)
Windows XP Pro. Edition

Answer:CD-Rom not powered

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I have run out of USB ports on the back of my PC. Am going to buy a USB hub, but don't know if I need to get a powered one or not.I plan to plug all the less used USB devices into the hub, to leave the frequently used devices plugged directly into the PC. Of the less used devices, several (scanner, steering wheel, camera docking station) are mains powered so the USB connection only works when they are switched on - do I need to get a powered USB hub??Reason I am asking is that I could do without another power cable to find a socket for.....MTIAChris

Answer:USB hub - powered or not?

you don't need to buy a powered hub, but it is useful for those devices that draw their power from the usb connection.

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Question: Powered USB Hub

700mhz 256mb ram, Win XP Home, AOL8 BroadbandI have two USB ports and use them for the broadband modem and the printer. Can anyone tell me what advantage if any I might get from installing a powered USB hub, and plugging the printer and broadband modem into that.I read somewhere it might improve broadband speed?

Answer:Powered USB Hub

Printers and modems often do not work very well connected via a USB hub. They work even less well if both are connected via the same hub. You are better with the setup you have already and if you need more USB ports, buy a USB PCI card which will give you 4 or 5 NEW USB ports.Do you have a problem with your broadband speed? You can check and compare it if you click here and look top left aand click on "Speed Test".Brian

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im making myself a sort of NAS box, but without the NAS for now lol

I will be mounting 4 3.5" HDD's in a hot swap box im making, and converting them to usb. For backing up purposes, without RAID.

Instead of having 4 usb cables coming out, i though about building a powered usb hub inside, and having just the one cable come out.

Just wondering if theres any part of my plan that ive not thought about!

Answer:How many HDD run off powered HUB?

Um...even if this works, how would your computer be able to address 4 different disks over a single USB cable? Short of writing your own transport protocol and special drivers to implement it, I don't see this happening....

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A friend of mine had a power cut for 30 mins, and while that happened he was on his PC, when the power went off, obviously his pc went off as well. I asked him if he had a surge protector on there, he said no, and since the powercut his pc has never started up. it made no noises, no smells, just no power. basically no ones at home.

Has the power supply just gone, or is it a more serious problem

Any help would be great.

Answer:never powered up again

Has the power supply just gone, or is it a more serious problem Click to expand...

The power supply is most likely gone, although when a power supply gives up the ghost it can take other hardware with it. Try disconnecting all the drives and booting, if it doesn't boot replace the power supply and cross your fingers and hope everything else is okay.

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Hello, last night, I was having problems with my computer overheating while playing video games, and then I remembered, when it over heats, to make sure all dust is cleaned from your computer. So, therefore, this morning when I woke up, I took some q-tips, and proceeded to clean my computers fan, and RAM chip bus. Then, when I tried turing it back on, it wouldn't boot up. My OS would not boot up, and nothing would show on my screen. I checked for anything I must have unpluged, and re checked everything, but it's still not powering up. Does anyone have any suggestions? I think it has something to do with my RAM chip bus. SOmething musta burnt out. Any ideas would be perfect.

Answer:Seems like something isn't being powered up..

Qtips, and the motions of cleaning with the use of them, can introduce static electricity.
Go back to basics... the most fundamental setup you can create... power supply, video graphics port or card, one memory module, and a floppy disk with MSDOS or Windows 98 Boot/Startup, or if you have no hard drive, a boot to a CD-ROM such as Windows 98 or Windows ME. Boot to SAFE MODE if possible.
Does it boot? If not, you know you may have a problem. So change the optical drive, and try again./
If it does boot, change memory modules and try again. Still working?
Keep on adding one component at a time... then change to the hard drive, removing the discs from the floppy or opitcal drive.
Keep toying with the system to get something to boot, still keeping it as simple as you possibly can.
Progressively change and test. You can learn a lot in the process.

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Question: under powered?

I'm not so sure about this one, might be worth it. I think my power supply may be insufficient for the amount of ram I'd like to use.

AMD athlon 750
VIA Northbridge 100 fsb
ASUS k7m mobo
2x 128mb pc133 (should be 3x -- here's the problem)
300 watts
nvidia geforce ultra 64
sb16 pci
Maxtor 60gb HDD
WD 2gb HDD
XP Home
Canoscan USB scanner
Canon Printer on parallel

Alright, so, all three chips I have check out. I have used each independently, and run them through memtest86. The two I currently run are 8x16mb chips. Every time I try to run the third, a 16x8mb chip the original equip, it's all about the blue screen. I have had issues with other chips and compatibility. Kingston's 8x16 chip didn't like my machine's language, and had to step outside. My bios does not support registered memory, as I found out the hard way. A 4x32 ValueRam chip felt threatened. Do I give in and drop another sixty on a new chip, or can this chip be integrated into a community that needs a chip just like it to round out the neighborhood? Would a 450w ps help? A 400w? What gives? Does anyone know what I'm on about?

Answer:under powered?

Seriously doubt its a power supply issue. RAM uses very little power in comparison to other things.

Sound like its a RAM type issue, they just will not play together.

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When I was working, for an Authority, all PCs were powered up 24/7. When I asked the reason for this, the reply was 'less wear and tear on the equipment'. That sounds feasible to me, but should we treat our own PCs in this manner? Is it more/less expensive (energy-wise) to keep them powered up? I'm concerned that the fans stop working and the thing burst into flames!....or would that not happen?AngeTheHippyx

Answer:Is your PC powered up 24/7 ?

I leave mine on standby overnight. I believe this reduces 'wear and tear'. Some people will point out the risk of fire, but if you look round your home and count up the number of electrical items left plugged in, one more will not be of much consequence.

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Question: AMD powered PDA's

Saw this at AMDZone, AMD is currently sampling PDA type CPU's.

AMD Introduces Alchemy AU1100

By: Chris Tom
April 8,2002

SUNNYVALE, CA-APRIL 8, 2002 - AMD (NYSE- AMD) today announced the introduction of the Alchemy(tm) Au1100(tm) processor, targeting the non-PC mobile internet appliance market, such as web pads, telematics, and PDAs. Currently being sampled, the innovative Au1100 offers an industry-leading combination of high performance, low power and high integration.Click to expand...

Full story here.....I wonder how a PDA is gonna look with a SuperOrb on it ?? PDA article

Answer:AMD powered PDA's

Well its beyond me how you can post in the news forum and not notice the new news topics posted....

AMD to enter new markets, including handhelds/PDAs


About the Alchemy? Au1100? processor from AMD
When Alchemy Semiconductor, Inc. was acquired by AMD in February of this year, its product portfolio consisted of the Au1000 and Au1500? processors. The Au1000 processor is currently in production and the Au1500 processor is sampling, with production scheduled for the second quarter of 2002. The Au1100 processor builds upon the successful Alchemy Au1 core, which is based on a MIPS32? instruction set. Like the Au1000 and Au1500 processors, the Au1100 is a System-on-a-Chip (SOC). SOC is a processor that has a core around which there are a custom set of integrated memory controllers and industry standard communication interfaces. SOCs can be tailored for use in different information appliances, such as PDAs and web tablets.
Click to expand...


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I need to get a 4-port USB2 extension hub for my PC. Since the hardware I intend to run through it (a scanner, a printer, and an external HDD) all has its own power supplies, is it best if I get a powered hub or will a non-powered one be okay?I understand I'm best off with a powered one if my hardware takes its power from the USB socket.

Answer:Do I need a powered USB hub?

don't buy one I've got a Belkin 4 port that you cna have.If your PC is relatively new I wouldn't have thought you need one tbh.H

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Question: usb 2 powered hub

Good eve to all.As you all know we have a number of gadgets attatched to our computers via usb 2 cables.Been looking around sites pc world etc for maybe a usb 2 high speed powered hub maybe with 10 - 12 ports.Or would it be viable to have two 7 port hubs working side by side,any idea where i might pick something similar to what i'm looking for.Thanks all your forums are great help.daiol.

Answer:usb 2 powered hub

If you are going for a desktop hub, choose a mains powered model.USB 1 or USB 2 support is entirely dependent on your motherboard.For a full check of what your model will supportclick hereRun the free tool, which will tell you what your board will support.

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Question: Powered usb hub

I have recently bought a belkin 7 port powered usb 2 hub as i use an evesham voyager notebook as my home pc and it only has 3 usb 2 ports built in and i was wondering if it is okay to plug powered units into it ie a printer or external burner.

Answer:Powered usb hub

Yes, that will not be a problem - I used to run my scanner and printer off a powered hub.

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Question: Powered USB Hub

I just put a powered USB hub in and have it running through my docking station for my laptop. It pops up and says it can perform faster and to hook in to another port, what port are they talking about????

Answer:Powered USB Hub

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Question: Powered USB hub

Apologies for what must be a very simple question. I'd be grateful if someone could tell me the advantages of using a powered, rather than a unpowered, USB2 hub. Is it just a matter of supplying necessary power to a particular device? If so, what devices would need one? Would using one if it isn't actually required be OK?Many thanks.

Answer:Powered USB hub

Deininately preferable.An unpwered hob relys on the PC power supply, which with some devices -a scanner say can be considerable and affect the computers performace. It does not matter too much for card readers or mice etc.,More over even here if devices not being used are left plugged in they will all be havine there 'pull'and can actually stop the msachine or at least not read.The rule here is if you are not using it pull it out and if you can power it separately.

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i have a computer who's usb ports don't produce enough power for my devices and i was wondering if i just used a powered usb if it would allow my devices to function.

Answer:Would a powered USB hub help me?

Yes dwizzle,
a good powered external USB hub would work for you

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To save endlesslessly plugging and unplugging (and crawling around the floor behind the pc) I am thinking of investing in a USB hub. I have two USB ports - one of which is permanently assigned to the scanner (which has its own power source). The other port is the one where I intent to plug in the hub - with the idea of using it for digital cameras and card reader. Everything else is non USB.Powered or not?Advice - comments, dos and don'ts, all welcomed.

Answer:USB hub powered or not, and which?

i would use a powered one as sometimes it can drain a lot of power from the PC

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Question: CPU not powered?

Everything else is good. PSU fan spinning, power button working, GPU fan on (built in on EVGA GeForce GTX 750 ti SuperClocked), and it's plugged in by the PSU. The CPU fan isn't turning on either, yet it's plugged in. Sounds like anything fixable?

Thanks for any replies,

Answer:CPU not powered?

Need more information. Need make and model information on the Motherboard, CPU, PSU. Is the CPU fan a stock fan or aftermarket fan? Have you tried to remove and then re-seat the CPU? If you remove it, check for bent or broken pins.

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Question: Powered USB 2.0

I am just enquiring about laptop/notebook computers. I have an application that states that a USB1.1 (2.0 recommended) full powered port is necessary. Some makes of notebooks actually list amongst their specifications, for example, 3 x USB 2.0 4-pin connector, 1 X powered USB 2.0 4 pin connector. So presumably there is a difference. Can someone possibly explain what that is and whether some models come with this, for my application (Meade CCD astronomical imager), necessary powered USB 2.0 port.

Answer:Powered USB 2.0

however, I am not 100% sure about this

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Question: Powered USB Hubs ?


Thinking about a new HP Envy 750xt desktop PC.

Only seems to come with 4 USB Ports, unless there are some on the back also.
Don't think so, though, but can't find a pix of rear.

Anyway, I have quite a few USB gadgets plugged into my present PC, which has 6.

If I get one or more powered USB Hubs to allow me to use what I now have on this new PC, am I likely to run into any problems ?
Caveats ?

Is only 4 more or less a standard these days, or is HP really penny pinching ?
How's the rest of their quality these days ? Opinions ?


Answer:Powered USB Hubs ?

I don't know the typical number of USB ports for a new computer now, but I've used a powered hub for years with my desktop systems and have had absolutely no problems with the devices I connect to them. These include portable hard drives for backup, connections for managing content on usb flash drives and mp3 players, and charging for the latter. I believe many of the caveats for hubs were directed at the non-powered ones.

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I'm half looking into PoE for a future project and partially at work...

I know there are Switches that provide PoE.. but are there any switches (looking at the 4-8 port type) that are/can be powered with PoE? and also provide PoE (probably less likely).

application could be sending one cable from main switch to a room having that cable power another switch in the ceiling where a power port may not be available and then running cable down from a 4/8port switch. and if that switch can could also pass through PoE power phones.

The other application too could be networked security cameras

Answer:PoE Powered Switches?

Netonix and MikroTik both have some switches that can be powered by POE. I know some of the Netonix ones can also provide POE, but i'm not sure if any of the MikroTiks offer that.

Ubiquiti also has their EdgeRouter-X which can be powered by POE.

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Recently a friend's forum has been hacked, he's been able to recover most of it, and there's just 1 problem left. The "hacker" left a message on an "annoucement" that can be seen from the top of every forum section - can anyone please tell me how that can be editted or better yet, removed?

Thanks for the help in advanced - I've been through the control panel for a bit now & haven't figured it out.

Answer:Invision Powered help please

This depends on exactly what the "hacker" (most of them are mere script kiddies) has done. Could you post a link?

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Notebook does not power. The HP service in Ukraine (company A-Service, Kiev), said that the the issue is in main processor and the motherboard should be replaced, but HP has declined to send it to Ukraine. What should I do, to repair my laptop? Can I buy a motherboard abroad, if your service can not do it?

Answer:Notebook does not powered

Where is abroad? Where are you now (country)?

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Hi again guys

Well, I'm starting to replace some lagacy hardware, since some of it won't work even on a VM... I started with my old webcam (the Logitech oldie XD) that was inherited to my mom's PC (that uses Windows 2000, she's so happy with it XD)... then I bought lil' but nice webcam, which is generic I guess (Just supported by some site called with model PAC7302) has integrated microphone and goes pretty nice... except for one thing...

Whenever I try to use it with Arcsoft Webcam Companion 3 with the microphone that is integrated with the cam, a message pops out telling me that USB bandwitdh was exceeded, looking at the advice, seems that my keyboard uses 3% (a wired 600 USB keyboard from Microsoft) the video camera uses 70% and adding audion from it adds another 8%... with the 10% alocated by the system gives 91% (still has bandwitdh... but meh...) I tried many solutions including reintalling drivers, but still have this issue.

Reading over google, I found that this can be either a power issue (USB not giving enough power for this thus giving this message) or that my four USB ports use the same hub to give bandwitdh, thus not allowing me to use the camera's microphone...

My best workaround by now was to use my other mic integrated to my monitor, wich is an standard mic (no USB), but sounds awful XD...

Wondering if this has something to do with power or bandwidth, I'm thinking on purchasing an AC-Powred USB hub (with its own "power supply"... Read more

Answer:Is it worth to buy an AC-Powered USB Hub?

One of the first things to do there would be plugging the usb keyboard directly into a port on the rear of the case on the main board itself. Most keyboards especially any illuminated models will tend to pull heavier then other usb devices.

As for a small 4 port usb 2.0 hub I've been finding out one made by CyberPower initially found in a retail chain has been quite reliable for a number of other devices including usb flash drives, web cams, usb head sets, usb mics, etc. that won't break the bank! The prices will be different wherever you find one however running up from $18- upto and even over $30-US depending where you can order from.

You can see what this looks like at CyberPower USB Hub 4-Port 2.0 with AC Adapter - 4 x 4-pin Type A Female USB 2.0 USB USB (Upstream) - External CPH420P - Product and Price Information at NextDayPC

A shopping site like will often see various prices running higher depending on the vendor. NEW CyberPower USB Hub 4-Port 2.0 with AC Adapter (CPH420P ): Computers & Accessories

CyberPower also offers a larger 7 port model seen at newegg for $30US. NeweggBusiness - CyberPower CP-H720P High-speed Hub

I wouldn't advise charging cameras or cell phones regularly when plugged into a hub however. The better option for charging when not using the ac charging adapter for any hand helds is plugging into a port directly or only temporarily charging by usb only being the best move! The charging tends to warm things up!

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Hey guys,
I need a USB hub for the rear of my Buffalo Network Attached Storage (NAS) as I need outputs to both my printer plus an external USB backup device. Using my old USB hub was taking forever with a maximum data transfer speed of only 1.3MB/s to the USB hard drive.
So I'm wondering if you can help me choosing a USB 3.0 powered hub(4 ports+)?
Any help would be appreciated, thanks :)

Answer:USB 3.0 powered hub recommendation?

I recently got this one from Amazon(click here and it works exactly as I needed it to.
It was simple to plug into my iMac, and has handled external drives with ease, along with USB sticks, iPhone/iPad cables (syncing only/not for charging), and other peripherals. It will save swapping connectors repeatedly and potentially damaging them as they can not be left plugged in.
Hope that helps.

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I got a 2.5" external HDD enclosure from a place called to use with a Hitachi Travelstar 40GB HDD. I was under the notion that these 2.5" USB2.0 drives are powered via the USB cable. The enclosure also has the Firewire port and The firewire cable powers up the HDD, but when I use the USB2.0 cable, I need to use the DC power cord that came with it. I wrote to their tech support and this is what they replied with:

if your drive is rated at less than 500ma than it will power from usb specification is posted online

I don't really understand the comment. Am I supposed to look for the 500ma on the HDD or on the HDD enclosure specs.

Any help is appreciated, Thanks.

Answer:USB Powered External HDD

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i have a computer built from scratch. if i have the pci card in the bottom slot it works fine. but any other pci slot , the moment i activate the card it freezes. at least for the following cardsit freezes adaptec Videoh pci 2010, sound blaster live, wintv pvr 250.

i suspect power but not sure. i have:
in a case from compusa
300watt powersupply
K7v dragon+ mobo (onboard lan)
amd 2100+ polomino core
768 pc 2100 ram
48x cdrom
memorex dvd+rw drive
80 gig samsung hd
ati radeon 9000pro 128mg
soundblaster live
adeptec videoh pci 2010

i have disabled the com port and printer port and the game port on the sound blaster.

the videoh card worked when it was in the bottom slot that the sb live card is in, now it is in the mid slots and dont work.

(i installed the sb because the video captures are jumpy from the videoh and thought it was sound related from the onboard sound card)

the sb live card is in the bottom slot now and works fine

Answer:under powered computer???????

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Has anyone been afflicted by this pesky IE7 search engine hijack?
It doesn't seem to be malicious, but who knows - it arrived by devious means! Would appreciate some help or from anyone who has figured out how to remove it yet, beyond the normal settings and configuration checks. Ask returns as default on reboot.

I am using Vista OS.

Answer:Search Powered by Ask


I'm shifting this to the Am I Infected forum because you haven't posted any logs.

Did you install any software shortly before you began experiencing these issues? If so, what were they? It's possible that something like the Ask toolbar was installed along with one of those programs.

Orange Blossom

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I have ads "powered by name" all over my firefox browser.

I have tried everything from carefully uninstalling a few programs which may not be trusted to using a malware removal software.

Anyone who faced similar issue.


Answer:How to remove ADS powered by Name!

Click on this link to download : ADWCleaner Click on ONE of the Two Blue Download Now buttons That have a blue arrow beside them and save it to your desktop. Do not click on any links in the top Advert.

See the screenshot where the proper download buttons are highlighted
NOTE: If using Internet Explorer and you get an alert that stops the program downloading click on Tools > Smartscreen Filter > Turn off Smartscreen Filter then click on OK in the box that opens. Then click on the link again.

Close your browser and double click on this icon on your desktop:

You will then see the screen below, click on the Scan button (as indicated), accept any prompts that appear and allow it to run, it may take several minutes to complete, when it is done, you will get a message saying "PENDING" , Ignore that & click on the Clean button, accept any prompts that appear and allow the system to reboot. You will then be presented with the report, Copy & Paste it into your next post.
Please note: the newer versions of Adwcleaner have a pretty colour display on some versions of windows and slightly different icons. The screenshots are from the older version but are basically the same

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Why don't all AC Adapted powered USB Hubs charge handheld devises.  The devices that are made to be charged by a USB port on your computer.  Even the USB Ports on computers don't always charge devices.  What USB AC Powered Hub is the best for charging???

Answer:USB AC Powered Hubs

It's a limitation of Windows & USB2.0, current to USB port is limited to 500ma (1/2 A).The USB 3.0 Power specification states the following:In Battery Charging Specification, new powering modes are added to the USB specification. A host or hub Charging Downstream Port can supply a maximum of 1.5 A when communicating at low-bandwidth or full-bandwidth, a maximum of 900 mA when communicating at high-bandwidth, and as much current as the connector will safely handle when no communication is taking place; USB 2.0 standard-A connectors are rated at 1500 mA by default. A Dedicated Charging Port can supply a maximum of 1.8 A of current at 5.25 V. A portable device can draw up to 1.8 A from a Dedicated Charging Port. The Dedicated Charging Port shorts the D+ and D- pins with a resistance of at most 200Ω. The short disables data transfer, but allows devices to detect the Dedicated Charging Port and allows very simple, high current chargers to be manufactured. The increased current (faster, 9W charging) will occur once both the host/hub and devices support the new charging specification.

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Hello, Hope someone can help me with my problem, yes I know I have Logmein installed along with copSSH.I know I have a few dlls running that are mallicous but they aren't removed by killbox or icesword. and I can't boot into the recovery console to remove them.I know of these two, and they have avoided all my attempts to remove them."C:\windows\system32\ssqolkk.dll""C:\windows\system32\mljgd.dll"Much Thanks,kd7jitLogfile of Trend Micro HijackThis v2.0.0 (BETA)Scan saved at 9:04:04 PM, on 5/3/2007Platform: Windows XP SP2 (WinNT 5.01.2600)Boot mode: NormalRunning processes:C:\WINDOWS\System32\smss.exeC:\WINDOWS\system32\winlogon.exeC:\WINDOWS\system32\services.exeC:\WINDOWS\system32\lsass.exeC:\WINDOWS\system32\svchost.exeC:\Program Files\Windows Defender\MsMpEng.exeC:\WINDOWS\System32\svchost.exeC:\WINDOWS\system32\spoolsv.exeC:\WINDOWS\system32\cisvc.exeC:\Program Files\copSSH\bin\cygrunsrv.exeC:\Program Files\LogMeIn\RaMaint.exeC:\Program Files\copSSH\bin\sshd.exeC:\Program Files\LogMeIn\LogMeIn.exeC:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exeC:\PROGRA~1\McAfee\MSC\mcmscsvc.exec:\program files\common files\mcafee\mna\mcnasvc.exeC:\PROGRA~... Read more

Answer:Bho Ads Powered By Zedo

Please download VundoFix.exeto your desktop. Double-click VundoFix.exe to run it.Click the Scan for Vundo button. Once it's done scanning, click the Remove Vundo button. You will receive a prompt asking if you want to remove the files, click YES Once you click yes, your desktop will go blank as it starts removing Vundo. When completed, it will prompt that it will reboot your computer, click OK. Please post the contents of C:\vundofix.txt and a new HiJackThis log.Note: It is possible that VundoFix encountered a file it could not remove.In this case, VundoFix will run on reboot, simply follow the aboveinstructions starting from "Click the Scan for Vundo button." whenVundoFix appears at reboot.

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I use Firefox and everytime i use it I have constant pop-ups, ads window pop-ups, new tabs open, new windos open, redirects, and ads all over every page i view. The ads all say things like Powered by Name, ADS BY name, AD OPTIONS, and highlighted words all over the page that pop-up small ads when I mouse over them. Please help me remove all of it. I have been Googling it and just cant seem to figure it out myself! PLEASE HELP!!

Answer:Powered by Name, Ad Options, Ads by Name

Junkware Removal Tool. Please download Junkware Removal Tool and save it on your desktop.Shut down your anti-virus, anti-spyware, and firewall software now to avoid potential conflicts.Run the tool by double-clicking it. If you are using Windows Vista or Windows 7, right-click it and select Run as administrator.The tool will open and start scanning your system.Please be patient as this can take a while to complete depending on your system's specifications.On completion, a log is saved to your desktop and will automatically open.Please post the JRT log. Adware Cleaner. Please download AdwCleaner by Xplode onto your desktop.Close all open programs and internet browsers.Double click on adwcleaner.exe to run the tool.Click on Scan button.When the scan has finished click on Clean button.Your computer will be rebooted automatically. A text file will open after the restart.Please post the contents of that logfile with your next reply.You can find the logfile at C:\AdwCleaner[S1].txt as well.  Adware Removal Tool. Download Adware removal tool to your desktop, right click the icon and select Run as Administrator.Hit Ok.Hit next make sure to leave all items checked, for removal.The Program will close all open programs to complete the removal, so save any work and hit OK. Then hit OK after the removal process is complete,  then OK again to finish up. Post log generated by tool.   ZHP Cleaner. Download and save ZHP Cleaner to your de... Read more

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When I connect hardware that need power, like a hub or an IPOD or even a wireless mouse transmitter, when I come to turn off the computer it gets the "windows is closing down" page and then just hangs.I have to then power the machine down from the supply and remove the USB hardware and then power up and then shut down again.My printer runs from a USB port and does not cause the problem, it has a seperate power supply of course.Thanks for any help in advance

Answer:Powered USB hardware

Hi, sounds as if you need a Powered USB Hub.

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I've had my PC for at least 6 months now, and it has worked fine.

The other day, when I went to turn my PC on in the morning and it would power up for a few seconds (fans & hdd's whirring), before shutting down. It would automatically attempt a restart within a few seconds, but the same thing happens. I opened the case and had a look, nothing seemed out of place. I have tried it a few times since, and it can sometimes come on for a few seconds, and sometimes it will boot to windows and stay on for a few hours before shutting down again.

In a nutshell:

It powers up for intervals ranging from a few seconds to a few hours.
I haven't changed anything in the system.
I have tried a different socket & cable.

I have ordered an Arctic Power 500W to replace my stock 300W, but I'm not wholly convinced it will solve the problem. Anyone got any other ideas, I'll take any simple-stupid suggestions, in case I missed something obvious.

A common answer I have googled is CPU overheating - I highly doubt it is the CPU overheating in this case, due to it first occuring within a few seconds, and the PC staying on for a few hours at times.

I have noticed the USB which I use for my mouse freezing during the longer stints that it is working, which makes me worry that it is the mobo, but the problem occurs whether plugged directly into the mobo, or using the case USB at the front, so this may be a symptom of a larger problem.

Thanks for any help... Read more

Answer:PC won't stay powered on

PSU fixed it, thanks for all your help everyone.

No seriously, I mean it, THANK YOU everyone who helped, bookmarking this page and checking it daily was a priviledge and not a pointless chore.

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My aunt came over and usede my computer today, and she improperly shut it down like three times in a row. Now, no sound will play and this is one of the error messages I get. "Windows Media Player cannot play the file because there is a problem with your sound device. There might not be a sound device installed on your computer, it might be in use by another program, or it might not be functioning properly"Also, the bar with the minimize and close button have the classic "98" look (the computer is new though), and I cant get it back. A few months ago, I shut my computer down improperly and got the same problems. But I had just gotten the computer so I just re-installed XP and it was fine. But now I have a lot of documents and and programs that I dont want to lose. Can anyone help me with this? Thanks!

Answer:Powered Down Improperly...

Try System Restore.

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Hi guys,

I posted a thread about a day ago about having bought a radeon 9800 card about year or two ago, and having it fry my motherboard's agp slot. I'm not sure if I should try that route again, although one poster recommend lowering the AGP speed down to 4x... (running a KT600 mb). I'm keen to avoid all possibilities of damage though!! Also don't have a hugeee budget, just something to tide me over for a year or so.

So I'm wondering what the best graphics cards that DON'T hook into your power supply are? I have no bias with ATi / nVidia, although have leant towards ati in the past. Currently am running a 9250 (thought it was a 9500 in my previous thread).

Have been thinking about an ATi 9600XT 256mb. Want to play Thief 3 and Battlefield 2, hopefully at least looking ok. Can run the BF 2 demo at the moment pretty decently at 1024 with everything on low, but thief 3 runs like sh*t with everything on low. Would they run much better on the 9600XT? Or the best unpowered nVidia card?


Answer:What's the best AGP card (NON-powered) you can buy?

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And then heard a small what sounded similar to a "sizzle' and saw a small light inside side of harddrive as I have a clear side panel.  It appeared to come from area of graphics card.  I rebooted, and all seems ok, I did lose all my cookies in Firefox however.  Nothing else appears to be wrong with it.  Any ideas as to the cause?  Very wierd.  Anyway,   thanks for any info.

Answer:Computer powered off by itself...

HDD's are sealed...thats not where the light came from...

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Question: Powered by ZEDO

I've just re-installed IE7 due to problems. Now I'm getting multiple IE windows headed 'Powered by ZEDO'. What's to do?

Answer:Powered by ZEDO

Looks like you might have a rootkit infectionclick here

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I have uninstalled the high rate wireless driver and reinstalled several times, rolled back drivers, been reading blogs....still no wireless signal...closest I came two times is when I could actually see my home wireless service but it said the signal was too low to connect...and i was RIGHT IT!!!I have spent so many hours trying to fix my laptop...dont know what to do! All I know is I used a verizon broadband service for several months on the laptop and when I removed it my laptop couldn't find wireless service on its own anymore. I have rolled back and re-installed and see what I usually do....Access Manager says the radio is powered on but not associated???PLEASE HELP!!!Jenn

Answer:Radio powered on, but not associated-- PLEASE HELP!!!

hey jmerritt07,try uninstalling both the wifi driver and the Access should then reinstall a generic wifi driver for your unit. try connecting to your home's wifi with this setup.

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 have the "always on" for USB enabled in the BIOS, but no power is going to any of the 3 USB ports on my T61.  Is there something else I need to enable in order to always have power to the USB ports?  Thanks.

Answer:No power to USB while powered off

i think the always on function really implies that the usb port never goes into power saving mode, if you need to have constant power to usb port, just get a usb hub that can plug in dc adapters, which can provide constant power to the usb ports on the hub.

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Hi. I am having problems with USB devices freezing or not being powered at all through my USB ports. I have been looking for an a/c powered hub (USB 2.0 is fine) to power game controllers and the like (such as the Razer Tartarus/ Saitek X52) - they freeze up when I use them together via the PC's USB ports.

But I can't seem to find one that's recommended. Nothing will ever get 100% 5* reviews of course, but comments (on such as 'this device burnt out my motherboard', 'lasted six months then stopped working' and the like are not to be taken lightly! So any recommendations welcome.


Answer:USB hub, a/c powered. Recommendations please?

Only obliquely addressing your issue, but I've been through the same issues in the past and found out that it was really driver issues not a lack of 5V power. With a high-end rig like yours, I suspect you are solving the wrong problem - just my 2?. Have you tried a typical cheapo powered USB block that runs off your PC?

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Question: Yahoo! Powered

So, today I was uninstalling some programs to make room on my hard drive. There was a program there I hadn't seen before, called "Yahoo! Powered". It had no publisher, and no icon, sounded weird, and I didn't install it, so I did a quick search to see if it was trouble, and apparently it is. Not entirely sure how to get rid of it, but it's apparently been on my computer for 21 days now. 
I've never had to get rid of any viruses before (I'm sure my other computers had loads of them, but I never bothered), but now that I've spent over a thousand dollars building a pretty nice computer, I'm not okay with having viruses...
So where do I start in getting rid of it?

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Just got new Amazon Basics A150's. Very nice for the price. Instructions did not say if it is ok to leave speakers on all of the time or if they should be turned off. I recall reading somewhere that they should be turned off. Doesn't seem like it would make much difference but thought I should ask. Thanks.

Answer:AC Powered Speakers

I leave mine turned on all the time. I pull the AC plug out when I go on vacation or away for a few days.

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Question: Powered USB Port

I have a headset that plugs into a usb port.  None of my usb ports provide power when my computer is off.  As a result, my headset power is drained until I turn my computer on.  Is there a way to configure a usb port to remain powered when my computer is off?  Thanks.

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Greetings AllI'm a Doughnut when it comes to this stuff, so be gentle with me! ... It's my first time!OK using a 7 port powered usb hub, and I want to add the same again (link together), can this be done? and if so how? ....... (simple terms please) ........

Answer:Powered USB Hub & adding another ?

I think you can but the power of the USB will be very weak (Such as transfering infomation back and forth will be slow, or the slot might be to weak to power up anything...).

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Hello there,I havea problem with my pc.It is powered on but the screen was blacked out,nothing display on my screen.I've noticed that the motherboard LED wont light out and the graphic card fan didnt spin.Please help me

Answer:Pc powered on but no display

check all connection to the motherboard.
if still same with luck its a failed PSU (cheaper) rather than failed motherboard (expensive)

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After setting idle for 6 months because it was dead, no power up anything, this AIO was plugged into it's A/C adaptor and then a wall outlet and it booted up like normal. After cleaning out the temp files, it was powered down at end of day.This morning it did not power up at all, like it didn't 6 months ago.Ever hear of this with any computer format? 

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I have the Yoga 2 11 laptop which is about a year old.  While in use it suddenly powered off and will not come back on.  It has never done this before. It will not power back on.  Any suggestions as to what the problem is and how to fix?

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Hello, Can someone help me? I have a Yoga 2 pro and the powered usb port was supposed to work as a charger even with the laptop turned off, but it is working just with the computer on, I already tryed to change the in the energy options the selective suspension of the usb and also in the device manager, I deselect the "computer can turn off the device to save energy" but nothing worked!!! Helpppp


Go to Solution.

Answer:Powered USB does not charge

Link to picture
Moderator note; picture(s) totalling >50K converted to link(s) Forum Rules

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What is this? When running AC powered the fan keeps running all the time. When I unplug the power connector it stops after a while and turns on occasionally. I already changed some bios settings for testing purposes (no succes). OS is Windows Vista SP1 fresh install. I checked the power and chipset drivers in the Lenovo update utility.

Answer:R61 fan ac powered on all the time!!

Hi! I have the same Problem. But the fan doesn't run all the time, though it runs ever 30 seconds and it's annoying. The CPU-Temps are between 33 and 35C. The fan starts between 35C and 36C so there is no need for cooling.Are there any solutions?I know tpfancontrol and similar programs, but i'm looking for alternatives. Maybe a Bios-Update (@Lenovo)?! System is a R61 with T8100, IGP...newest BIOS (2.21). ThanksHeadMessage Edited by Head on 10-28-2008 08:15 PMMessage Edited by Head on 10-28-2008 08:16 PM

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I would like to know if it is possible to power a laptop (any) by using a standard USB port and by doing this preventing the use of the normal connection that connects directly to the main.I would like to power my laptop using the cigarette lighter in my car directly by by-passing the normal mains connection and use one of the 4 standard USB ports in my laptop. The problem occurs when trying to order an in-car laptop adapter the connector can have several OD and ID diameters and usually it depends on the brand of the laptop and model (e.g. Sony is different than Acer laptops). I think that powering the laptop directly from an in-car cigarette lighter to a USB standard port in the laptop can eliminate the problem of the versatility of connectors in all the laptop brands and models. For example there are on the market cigarette lighter devices powering PSP by using a standard USB connection.I wonder if somebody may give some hints on this.

Answer:in-car usb powered laptop

I'm sure (but I could be wrong) that you can't power the laptop via the USB port. The port is designed to output power at a few milliamps, whereas the power connector is designed to input power at several amps. Maplin supply a number of in car power supplies with adaptors for different power sockets e.g. click here.

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Question: Powered By LoudMo

Hi !Whenever I open my browser i keep getting another window opening which says "Powered By LoudMo", it is obviously some kind of malware and don't know how to get rid of it, anyone got any ideas ? I have up to date Symantec Antivirus software as well as CCleaner & Super Antispyware installed but none of these will find and remove it. If anyone can shed some light on how to resolve this issue I would be grateful.Thanks.

Answer:Powered By LoudMo

click here

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my compaq presario cq50 is powered on but not displaying pls any solution. thanks.

Answer:powered on but not displaying

Hi there,Please try to get display on external monitor and see you get display or not. If you got display then there is problem with your laptop screen and if you didn't then there can be a problem with your laptop VGA chip.Best of luckImran Khan

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My motherboard is Asus H170 Pro , and when i reboot none of the usb (usb 2 or 3) are working. When i make a reset (or power off from button) and open windows again, the usb are working.

Even the devices where are connected permanently (keyboard-mouse) are not working after reboot.

I have try to connect a flash drive with led, and the led is not lit, so there's no current in the usb.

Is there anything that i can do or my mobo is deflective?

Thanks in advanced

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I've bought a WD passport hard drive and it needs 1000ma power; my usb ports only give out 500ma. Can anyone advise me on how to get it to work? Thank you :happy:

Answer:under powered usb port


You need to use a 5V DC adaptor to power it if your USB ports doesn't give enough power.

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Hi everyone.

When I have finished with my computer I always power down completely(switch off at the socket).With this procedure I have no problem booting,but if I shut down the computer leaving the power still on,it will not reboot until I switch off at the socket.
All I get is a whirring sound from the hardrive.

Answer:No boot unless powered down.

I would try another socket, preferably one that is not on a switch

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Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 22/08/2009 13:21:48
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
Computer: Win7
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="">
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<TimeCreated SystemTime="2009-08-22T12:21:48.250000000Z" />
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Security UserID="S-1-5-18" />
<Data Name="BugcheckCode">0</Data>
<Data Name="BugcheckParameter1">0x0</Data>
<Data Name="BugcheckParameter2">0x0</Data>
<Data Name="Bugch... Read more

Answer:Win 7 powered off unexpectively

When did it happen? Did it happen after you put the computer into hibernation? More details are needed - list everything you can think of that you were doing, etc.

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Hello, i belive i recently got some sort of vius or something on my computer. Ive been surfing the web and came upon this massive pop up spam coming from this "powered by zedo" site that i keep seeing before the page is redirected. Ive ran McAfee several times to see if something was wrong and it had found somethings and gotten rid of them, but now that ive restarted my computer, there still coming. And now im at my wits end on what to do because i attend online corses and these "pop ups" interfere with them. Can someone please give me any direction on what to do? Also what ive seen is that when my scren is blank and on my desktop a little window pops up and says "serveris busy" and tells me to redirect the program to something else and gives me the options "Swtich to..." "retry" and "cancel" but the cancel button is greyed out and i cant get rid of the screen unless i open a program. Im not that high tech into computers and ways to get in them so please forgive me in advance if i take some time reporting to your directions. Thank you

Answer:"Powered by Zedo" pop-ups

after reading some other posts i forgot to add some info...

I am running Windows XP SP3 (i think SP3...last time i saw updates going it sid that.)

Also while i was reading more pop ups came and there were from...


hope some of this helps more, thanks for taking the time to read and help me on this subject.

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Today i tried to use my disk drive for the first time and it says it's powered off? what on earth does this mean? do  I actually have to turn on the disk drive manually? is this some sort of battery saving technique?

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Hello I have a problem with my dvd-rom. Whenever Im on battery, dvd-rom automatically turns itself off and I'm not able to turn it on again, clicking "power on" doesn't have any affect, and there is no setting in power manager that is related to this.I tried to reinstall microsoft drivers for dvd device,I tried to update PM and PM driver, but it didn't help. When I remove it in device manager and reboot system then it is ok, but this solution lasts until next boot. Any ideas ? Running W7U 64bit


Go to Solution.

Answer:E531 dvd-rom powered off (W7)

Welcome to Lenovo Community Forums!
I?m sorry to hear that DVD drive of your Lenovo ThinkPad E531 turns off while running on battery.
Try this. Go to Power Manager > Advanced > System setting > Disable automatic optical drive power off.
Also, in Power manager -> global power settings tab ->battery stretch settings -> uncheck disable optical drive.
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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I have purchased a DigiTV Box which plugs into a USB 2.0 Powered Hub. I am getting a perfect digital picture for about 8-14 minutes, then the picture starts to break up. When I touch the powered hub, it feels very warm, almost hot. I am informed that the DigiTV Box draws up to 500mA of power. Any ideas please?

Answer:Overheating USB Powered Hub

Why not plug it strait in computer

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Hi Recently purchased new rig, not enough USB ports. Got the Asus PRIME x299a so thinking of using the USB C port into a multi USB3 hub.
Any recommendations from personal use etc much appreciated (UK/Europe based please).

Sorry as an edit.

Will use a couple of ports for usb license dongles and 2 to 4 for usb 3 hard drives.



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Just put my new system together....built a few before but 1st processor i've installed (was scarey .. hehe).

1. I went to asus's website and downloaded the latest bios for my MOBO.
2. I made a raid install disk ( will be using xp64bit) in riad 0 setup.

Powered on the 1st time and entered bios.....followed the instructions for flashing my bios..the pc got to reboot and never powered back on.(waited about 5 minutes before powering back on manually)

Now when I hit the power button the pc powers up for about 8 seconds and then shuts down. No beeps or sound, fans work fine on power supply and case and processor.

Looked on the internet and in the instruction manual and no specific info, any help would be greatly appreciated!!! Please let me know if any more info would help out .

System Specs:
Asus Striker II Formula LGA 775 Nvidia nForce 780i sli atx Intel motherboard
Intel Core 2 Quad Q6700 Kentsfield 2.66Ghz LGA 775 95W Quad-Core
Antec 900 case
Antec true power tp3-550watt Power Supply
1 8800 evga 8800 knockout pci e video card
4 gigs of Corsair Dominator ddr2
1 3.5 floopy
2 250G Western Digital 16M sata2 hds
1 Asus sata dvd

Answer:PC will not stay powered on

If you have time:
Press DEL to enter BIOS setup page
After entering BIOS setup page, choose "Load Optimal Defaults".
Then click "Save and Exit" and reboot system

Rules for Safe BIOS updating through the Internet

1. For safety reasons, always use the most updated BIOS utility!
2. Do not overclock the system/CPU during BIOS update!
3. Load "Setup Default" in BIOS menu before BIOS Update.
4. Make sure you have "Administator" privilege on your Windows system (WinNT4/2000/XP).
5. Close all application programs under Windows.
6. Disable any existing Anti-Virus applications in the system.
7. Reboot the PC after the BIOS update is complete.
8. Switch on the PC and load "Setup Default" in BIOS again.

All ASUS motherboard will carry 3 year warranty services
ASUS notebook will carry 2 year standard warranty services

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Hi Recently purchased new rig, not enough USB ports. Got the Asus PRIME x299a so thinking of using the USB C port into a multi USB3 hub.
Any recommendations from personal use etc much appreciated (UK/Europe based please).

Sorry as an edit.

Will use a couple of ports for usb license dongles and 2 to 4 for usb 3 hard drives.



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could someone tell me if my system is under powered?

phenom II x4 3.5ghz 970
Asus m4a78t-E motherboard
4GB crucial ballistix tracer ddr3 1600
seagate barracuda 1Tb 7200rpm
2x radeon hd 6850 in crossfire
blu-ray burner
cooler master gx 750w
razer lycosa
razer mamba
razer megalodon
2x 230mm led fans
2x 140mm led fans
2x 120mm led fans
cooler master gemeni II cpu cooler

I believe that is everything that runs off my power supply. nothing is overclocked

Answer:is my system under powered?

I don't see a problem with the PSU. I think it's plenty.

Are you having some problems, or just worried?

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I was thinking of starting a podcast with video content. The major issue I'm contemplating is how to obtain the bandwidth to support the distribution of these files. The first solution was to use bit torrent to help provide some of this bandwidth. However, I'm not sure if RSS feeds allow content to be pulled from bit torrent? So yea, that's my question is there a way to make an RSS feed to allow the usage of bittorrent, and allow other users to seed it as well.

thanks for your input =)

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Hi,I recently upgraded my PC and all was working fine for over a day! Then my PC powered off for no reason and will not power back up at all. Now nothing happens when I press the power button. The bit I don't understand is my memory drive that is plugged into the USB port is still powered up and the LAN lights on the back of the motherboard are still lit. On the otherhand the power LED on the front of the PC, which was always lit even when the PC was switched off has gone out! At first I thought my PSU must have lost one of the rails, maybe 12Volts was down and the 5V was still powering the LEDs but now I'm not sure if the motherboard has gone pop.I've checked all the connections inside and even took the upgrade out (I went from one 256Mb PC2100 to two 512Mb PC3200 Memory) but it still won't power up.Has anyone seen this before or has any ideas what's going on.Thanks in advance.

Answer:PC Powered off and Won't come back on

It might be the PowerSupply or MotherBoard, best thing too do here Dazza is to try another PSU too see if that works if not you will need a new Main Board

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i have a four port powered hub that i need powered when i plugin the adapter lead the 6volt dc light doesnt come on but when the usb lead is connected 4 usb come on along with power light yet when i take out the power lead and leave the main usb lead in the power light goes out is this right ,or how do i check to see if it is powering up. REGARDS nOBBY

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Question: usb powered hubs

can anyone recommend a usb powered hub.Regards Alan

Answer:usb powered hubs

many on the market ,i have always used Belkin and they have served me well -regards hol pol...

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Hi.Does anyone know how to power a tft monitor with 12v?? I want to put it on my boat and so need a tft monitor that with run on 12v dcThanks all.

Answer:DC powered TFT monitor.

If you can't you can get 230v to 12v transformers. That's what car audio companies use to put game consoles in cars.

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I installed a PCI Ex USB 3 card which uses a SATA3 Power connector in order to function as USB3. This forum may well know that my HP6200 has a PROPRIETARY 320W PSU (no 20/24 pin connector) which I am determined to keep owing to HPs $$$$ PSUs. I have been told that the SATA power connector supplies a small amount of power (900ma?) to the 2 USB3 ports on the card in order for them to function in that mode. At this time I am running ONLY an AC powered 2T USB3 external HD and am wondering if this causes any power draw on the internal PSU. I ask this because the external HD is separately powered.

Answer:AC Powered USB 3 drives

The card, any card or device, draws some power from the power supply to function. In this case the extra power connector is to provide power for devices that require additional power from the USB bus, USB 3.0 devices can draw up to 900ma of power per port. If you are using a self powered drive than the only power the card is drawing is likely from the PCI-Express slot. Is that extra draw a problem? Highly unlikely as there is generally way more than that provided in headroom when a system is designed.

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