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

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

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

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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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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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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 !


Go to Solution.

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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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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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 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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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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Ok, I just built a new computer that I ran for about 2 hours give or take then it powered down completely during my OS installation. Now it won't even power up at all, I switch on the power supply and the green led on the motherboard lights up, pressing the power button however does nothing.
My worst fear at the moment is that I have fried the CPU by applying too much thermal conducting past between it and the heat sink. (I didn't apply the thermal conduct myself, I had my room mate helping me, I wasn't aware of how much was supposed to be applied.)
Now the question I have is, would that be the reason why nothing happens when I hit the power button even if the green light is on?
Another thing to note is that the cpu heatsink fan I bought already had a small amount of Thermal paste on it which we failed to notice right off.

Computer specs:
Asus M2R32-MVP Motherboard
Asus EAH3850 ATI Radeon Graphics Card
4 GB Kingston 667 Mhz RAM
dual 80 GB Seagate SATA HDDs
AMD Athalon 64 X2 6000+ 3.0 ghz Windsor Core
430W power supply by Dynapower

Let me know if anyone needs to know anything else. Thanks.

Answer:New computer that powered up at first, but will not power up now.

Dynapower is not a brand that I recognize, if it is a low quality PSU then that is probably the issue.

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Hey guys,

I came home today to install a new monitor, did a reboot--but when I pressed the power button to restart the computer it would not boot. Just dead. There is power going to the motherboard because I can see the SLI LED turn on when the plug is inserted. I've tried a replacement power button that I had laying around but the computer will still not boot. I don't have another power supply to test if it's the cause (but the SLI led still turns on, even so could it still be the power supply).

Where do I start trouble shooting in a situation like this?

AMD 64 3200+
Gigabyte 8INXP-SLI
Antec Neopower 480 Powersupply
2xGeforce 6600GT
1GB ram

Answer:Computer powered, but not booting.

The power supply is the first thing I'd be trying. You don't have one in another computer to pull out?

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I hope this is not going to be a problem. I leave my computer on except when I go to bed at night so it gets its 8-hours of sleep. Normally I have my screen saver kicking in after 15 minutes of non-use. But tonight after I was away from the computer for about two hours, I came out to the computer room and the computer was turned off, except the computer light was ON on the tower case. I had to reboot (or boot) the hard drive, ran Check Disk and it booted up normally.

Power Settings show no power turn off modes to be in effect and all other operations are excellent. Computer is healthy and malware free. I wonder if we had some sort of quick power outage in the house or something? I recall this happening with my Gateway when I had it years ago. (A power issue in the house.) Will watch and keep posting.


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I go to a few lan parties with a few friends and I'm relied upon to bring and set-up my netgear router. Is it possible to plug it into a PC's PSU? As in, take the side off and attach it to one of the CD/HDD power leads? I have a few fans lying about to getting the plug isn't an issue, just, is it possible?
It's a netgear and runs on 12v 1000ma.

Answer:Computer powered router

Well, if you rig up a cord that runs from the disk connector to the router's P/S plug, it should work. Those supplies are just DC supplies. Make sure you get the polarity correct, or it'll be a short experiment.

Radio shack has a variety of the connectors used on those P/S models, if you can't find an old wall-wart to hack the cord off from.

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Hey, having a few problems with my pc (to say the least).

My pc won't boot up -
I turn it on, it brings up the purple packard bell screen, it goes through all the motions you'd expect untill the "windows XP" screen usually comes up..its just black..nothing there.
It will also not allow me to boot from my windows XP cd,so i dont know how to fix this!
Any Ideas?

Answer:The computer is powered up but XP will not boot

Boot to safe mode. If that works ok, then you know you've got a problem with the startup hanging at some point likely due to corrupt files.

Review the event viewer to see any errors or warning (system and applications).

Booting from your CD is typically a function of the BIOS? check to ensure your CD drive is selected as 'one' of the bootable devices, and it's BOOT ORDER is set to boot before your hard disk.

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The computer is POWERED, and everything else is running. But nothing comes up on the screen how can I fix it and what can it be

Answer:The computer is POWERED, and everything else is running

With the lack of information, it could be one of a dozen or so issues. Do you get anything on your monitor such as a message about it going to sleep or signal out of range, etc?I would try swapping your monitor for a different one to verify if it's the computer or monitor not working.What do you mean everything else is running? What else is running?

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We have a compaq running windows xp, I tried restaring it several times and I keep getting different results. Sometimes it will cut immediately off and I hear one short beep, sometimes it makes it to the start up screen, so i have tried to start it in safe mode then it cuts off, one time I was able to get to the setup section by pressing f5 only to have it cut off, and once it got all the way through the windows xp start up to the login screen and cut off.

I have cleaned it out and checked the fans, all of which are running. I also checked for any possible shorts in the wires and could not find any.

I have no clue.

Answer:Computer will not stay powered on

Also check that one of the tabs on the CPU cooler hold down bracket isn't broken. I have replaced a few of these after the plastic was old and brittle, and the tab just broke off.

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Please help my computer won't stay on anymore! It loads til the desktop sometimes and then just dies. I don't understand, i've checked all cables and connections, pulled all out a replaced them all but still doesn't help. Does anyone have any idea of what could be causing the problem? She was using it ok on friday morning but when husband put it on friday night it didn't load fully :-(

Answer:My computer won't stay powered on

Does it shut down with an error message and reboot or just it just die completely?

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Laptop: Gateway NV52
Windows: Vista
IP: Clear
Router: Belkin Basic Wireless Router

I lose internet connection when the computer powers off. Next time I turn the computer on I have to manually connect to the internet. I've tried going to "Wireless Network Properties" to check the box "Connect automatically when the network is in range", but it only lasts as long as the computer is on. If I turn it off or it powers off on its own the connection is lost. Any ideas?

thanks! :confused

Answer:Connection is lost when computer is powered off.

Re read your post something is not setup correctly, you may have to wipe the setting off the router and start over.

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Hello. I encountered an odd problem yesterday, and I was hoping I could get some help as to why. I had turned on my computer, and a few seconds after, the computer had turned off on its own. I turned it on again, and the computer powered up, but there was no activity; no display, and the light on the power button also would not go on. Also, the "thinking light" (as I seem to not remember what it's called) turns on and stays solid. My computer has no PC speaker, so I'm unable to hear any beeping (if there would be any). I was able to determine that the RAM is not the problem (swapping, changing ram did not change anything). I'm in the process of testing other parts, but I was hoping that someone with some experience with similar problems could help me out. Thank you very much.

Answer:Computer Powered down after turning on, now there is no response

You need to post your system component specs. Motherboard; EXACT make, model and revision (if applicable). Processor; EXACT make, model and stepping. Memory; EXACT make and model. Graphics Card (if installed); EXACT make and model. Power Supply; EXACT make and model. Provide links to the components.

If the machine is a mass produced machine such as Dell, Gateway, HP, etc. post the EXACT make and model as there may be known problems with certain makes and models.

No one can diagnose a problem without knowing the EXACT components you used in the build or the EXACT make and model of a mass produced machine.

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I dont know if this is in the right Forum as its a strange one.

Just before i was playing on Counter Strike and the computer crashed.

The power was still on, on the CPU, and also on the Speakers and Monitor.

But the Monitor isnt picking up the Computer, ive tried a different monitor but to no avail.

Ive basically just swapped all the wires over from the computer onto one of my old computers which im on now, and there was no problems what so ever.

So clearly its something wrong with the other computer, but it still powers up and is running, but just nothing appears on my screen.

Does anyone have any idea as to what could be going on.

Any help will be appreciated.

Thank You

Answer:Computer Powered Up, But Not Connecting To Monitor

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when i start up my computer ( dell ) every thing quickly lights up. except for the monitor. and with in seconds of starting the computer the fan in the back turns on and is very loud. and so nothing turns on. my keyboard or mouse no longer light up. and my monitor just says no signal. i dont know whats going on and what to do. all that i hear is a very loud fan. please some one help me.

Answer:Computer doesn't start when powered on

Ahh Dell.....famous for its fail often power supplies.. from what i can remember of these machines they used a PSU built specifically for Dell has to be the same one as that which is in the machine or it wont work.

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My computer powered off suddenly without BSOD. I would appreciate any help or advice.

Thank you,

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im not sure what this means, but im shocked to learn that windows 7 just restarted my computer or crashed and i dont know why. can anyone help me? im using build 7077. and heres the stuff from event viewer relating to the restart:
the main one:

Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 5/21/2009 2:15:53 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
Computer: MCKAY-HQ51
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="2009-05-20T23:15:53.418420900Z" />
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Security UserID="S-1-5-18" />
&... Read more

Answer:Windows 7 powered off computer for no reason!

When did you install 7077?
Did you verify that it was Activated?
Did you install with a KEY or without a KEY?

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System Specs:

Motherboard - P5N-D
CPU - E6700
Memory - 2x2GB Corsair XMS2
Video Card - Radeon HD 5870
PSU - Thermaltake 750W


Computer powered off while in the middle of me using it. Tried to power back on, but nothing happens when the power button is pressed. Tried unplugging the power supply and back in, still would not power on.


Hooked up my PSU to a PSU tester I have = Good

Replaced Motherboard = no change (indicator light is on, on the motherboard)

Checked power switch = Good

I also tried taking out my video card, left one stick of ram in, and still nothing.


The only thing i haven't checked is my CPU, I have just ordered the E8400 in hopes this will fix my problem, but I was hoping to get a little feed back on my situation as I have come up empty when searching online for a simlar problem.

I appreciate any feedback I can get!

Thank you!

Answer:Computer powered down, will not power back on

how about checking the mouse or keyboard? it happened to me once pc won't boot because of a faulty mouse

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My computer powered off suddenly without BSOD. I would appreciate any help or advice.

Thank you,

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I don't know much about the computer, since it is my sister's computer, but I can at least give you guys the basics. By the way, younger sister says there's no use in posting here, but I'm doing it anyway.

So, my sister has a seagate HDD. Recently, a month or so ago, she started having problems with blue screens. The computer would be fine after for a few days, or even hours, until it happened again. It eventually devolved to where it'd ALWAYS want to perform a check disc. We allow it to do so, but a LOT of files would come up as corrupt. And even after that, the computer would still not work.

We've done almost everything. We've done seatools multiple times, we've checked the RAM, and we even wiped the HDD to see if it were some kind of virus buried deep within the HDD.

The last thing we're trying is using a spare power unit that has more wattage than the one she currently has. If that doesn't work, I'll post about the results here.

But I would like instructions on what you guys need in case it doesn't work.

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I have Powered usb hub

plugged with usb device like Android phone for charging. IT is also plugged into front of usb front of computer.
I have usb power hub plugged into ac adapter to ac outlet.

When I click My Computer icon on my dekstop of my computer there is flashlght icon searching for contents in My Computer and it cannot display the usual c drive, dvd-rw icons and others until I unplug the powered usb hub.

So does this mean the usb powered hub is draining power from my computer
so I can't even display contents of " My Computer ", like it freezed up ?
Is this normal or is there something wrong with my powered usb hub ?

I thought that by using usb powered hub this would have prevent it from happening.

My powered USB hub is able to charge android device. Though very slowly
even when plugged in with ac adapter.


Answer:Powered usb hub searching for contents in My Computer

The Flash light icon searching is the computer "thinking". The USB port is not providing enough power to get the devices that are plugged into the Hub recognized.
Plug the hub into the Back USB port of the computer, not the front as that port is weaker. Plug the power adapter for the Hub into a wall socket directly and not a surge protector or extension cord as this diminishes it's power.
Do not plug in any USB Mass Storage drives to the Hub (eg) USB HDD, Flash Drives, Memory card readers etc. Only plug in light USB powered devices like USB Keyboards, Mice, Printers etc.
If you continue to have problems, replace the Hub with a known good brand.

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I have strange situation. After switch off the computer it switches on again automatically. This situation occurs only when laptop is powered from AC. When uses battery I can switch off. It looks like restart of system.

Unfortunately if I want to swtich off I have to disconnect power supply adapter.

Has anybody had problem like this?

Answer:Satellite A200-1CR - Computer switches on after powered off

This happens if you have Wake up on LAN activated in BIOS. Check the BIOS for Wake up on LAN and also disable USB Sleep & Charge.

I had the same issue on my desktop PC and after I disabled Wake up on LAN in BIOS it worked!
Check this!!

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So recently I started having trouble with my computer. At first, it started when it would occasionally freeze while I was playing WoW. Then, it started to do it just on the desktop. Now, it as at the point where it will not even beep when i power it on, and nothing will display on my monitor. All of the fans work, the HDD spins, as does the fan on the GPU. The last few times I could turn it on, I would see that my CPU was at about 45c. That seems pretty high for a start-up temp.

I guess I'm just wondering if people think that this is a CPU problem like I do? My system specs:

Mobo: Biostar A770 A2+
CPU: AMD X2 6000+
GPU: Sapphire ATI Radeon 3870HD
HDD: Western Digital Caviar 640g
PCU: Antec 650w

Answer:Computer would freeze, now will not beep/boot when powered on.

Open up your case, check the fans/heatsinks aren't completely clogged with dust.

After that reset the BIOS and hope nothing's been fried. Though by the sound of it something might have died already.

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Upgrading from Windows Vista to Windows 7 RTM

Okay, so I accidentally hit the power bar switch as in place upgrade rollback started.

When I rebooted, it came up with a few * is corrupt, rollback cannot continue messages, and then was greeted with a command prompt window.

Then, I inserted the Windows 7 install disc and chose "Repair Your Computer". It said it was fixing some hard disc errors.

I tried to boot into the rollback again-no luck, just a command prompt window.

The corrupted data wasnt very important, just some YouTube videos.

Is there anyway to manually start rollback? Please help!


Answer:Accidentally Powered off Computer right as Rollback started--Please Help!

Why bother? The Win7 RTM (if it is the Release To Manufacturing) would only be functional for the next month or two, anyway. Just bite the bullet and get a real Win7 commercial version.

When you go to install that, it should search your hard drive(s) and tell you what volumes you have and ask what you want to keep.

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:bounce: hey i recently purchaced a PCChips m8llu motherboard, and an AMD Duron Processor.
I replaced my old mobo and kept the same ps... the first time I booted the mobo, the boot screen came up and the bios setup was loading... then for no reason the computer just shuts off... the heatsink feels hot and the mobo also feels hot... is this overheating?
I powered everything up again after an hour, and no video... I just hope i didnt fry the mobo or cpu... I've tried many troubleshooting and the ps works fine... please help someone... thanx

Answer:computer powered, but no boot screen or video

Shutting down immediately is not a good sign.You either strip down to the bare minimum and try to get to BIOS /or take your parts in for testing.
Did you use Thermal paste? Heatsinks are always hot to touch so hard to say if you burnt it. until you can atleast swap out some parts/test.

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  I have a HP Pavillion 23 all-in-one desktop running Windows 8, I believe. I haven't used it in about 2 months. I powered it on today and started running updates it missed out on; Apple Itunes and Norton. I opened a board on Chrome during the process but got nothing. I saw my bookmarks there on the screen, but nothing came on the page- black board. All of a sudden, mid install, the computer sort of powered off. The screen went black for about three seconds, then on for three seconds, then off for three, etc, etc. The power light remained on as well as a power light on the back, as well as some internal lighting that could be seen from the vents. It made a sound every time the screen went black like it was powering off, but I could still see all the lights on. I unplugged it from the wall for a few minutes and tried again. It will no longer power on, but I still see lights on internally. Not sure where to go from here. Any thoughts or feedback would be greatly appreciated 

Answer:Computer was running updates and powered down for good....?

  I'd try over in the Internal Hardware forums for some more expert advice: 
My only suggestion is to unplug it and hold the power button down for 30 seconds.  Then plug it back in and see if it works.
Good luck!

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Hi all,

I have a strange problem occurring on my network. This problem has been happening since an upgrade to Windows 10.

The issue is that even when a machine is powered off, it ends up transmitting over the internet and bogging down my internet connection. I'm not sure how a powered off computer is connecting to something on the internet and transmitting. It could be a windows 10 thing. Something else. I have no clue.

But anyways. According to my router, the machine is downloading from the following IP address.


Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.


Tracing route to []
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms balance-65dc []
2 1 ms * 1 ms
3 61 ms 33 ms 7 ms []
4 141 ms 141 ms 8 ms []
5 * * * Request timed out.
6 154 ms 150 ms 139 ms
7 283 ms 137 ms 147 ms
8 * * * Request timed out.
9 * * * Request timed out.
10 * * * Request timed out.
11 128 ms 144 ms 144 ms []

Trace complete.


It seems to be a Mi... Read more

Answer:Issue with powered off computer hogging my internet

Your router is wrong, a computer off won't download anything irregardless of OS. If anything it'll do WoL which is local network only.

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  I have a HP Pavillion 23 all-in-one desktop running Windows 8, I believe. I haven't used it in about 2 months. I powered it on today and started running updates it missed out on; Apple Itunes and Norton. I opened a board on Chrome during the process but got nothing. I saw my bookmarks there on the screen, but nothing came on the page- black board. All of a sudden, mid install, the computer sort of powered off. The screen went black for about three seconds, then on for three seconds, then off for three, etc, etc. The power light remained on as well as a power light on the back, as well as some internal lighting that could be seen from the vents. It made a sound every time the screen went black like it was powering off, but I could still see all the lights on. I unplugged it from the wall for a few minutes and tried again. It will no longer power on, but I still see lights on internally. Not sure where to go from here. Any thoughts or feedback would be greatly appreciated 

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This started happening after I did updates. Every 30 minutes PC was set to go to sleep. Since I dual boot Ubuntu the PC was always running ubuntu after 30 minutes. Go away for an hour, come back and ubuntu was running.
So I tested by telling it to sleep, and it goes back to the bios and does a reboot.

I have turned it to never sleep. But I would like sleep to work.

So what to do?

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Hi there,I have a custom built PC for running DJ software. It has never been connected to the internet, nor is it likely as it has no network card. It has no CD or floppy drive, and music is only updated from CD via my desktop machine to a USB stick, therefore ruling out viruses. The software and all files on the machine are legit copies. The machine has worked fine until around the middle of last year (September 2011). Now the date and time have problems. I mainly use this machine on a Friday and Saturday night, and have noticed it won't go past 21.00! It alwasy jumps back to around 20.00. Today I changed the BIOS setting of the clock to the correct time and watched it on Windows. It seems to slow down every few seconds. I have recorded this to YouTube so it can be witnessed: If anyone knows what is causing this and preferrebly how to sort it I would apprieciate the advice.Many thanks, Paul.SPECS: Custom PC by Computer DJ Ltd.Intel Pentium M 1.73GHz 795MHz 0.99GB RAMWindows XP Service Pack 2

Answer:My Computer Loses Time Whilst Powered On

Cmos battery does not affect the clock keeping time. Someone confused losing the present time like you do if the cmos battery has failed with a malfunctioning clockThe quartz clock on the mainboard is failing.Any chance the mainboard is still under a return warranty?Answers are only as good as the information you provide.How to properly post a question: Sorry no tech support via PM's

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First off my PC started up fine and then after logging in and the system started to load up the computer suddenly turned off. After investigating i thought it might be a thermal trigger on the PCU but after testing I'm almost certain it isn't. Then i thought the motherboard might be shorting on the case so tried starting it up with no fans or drives plugged in with the motherboard resting on a static free surface and it still wouldn't start up. I know its not the PSU as its quite new and it boots up fine if its not plugged into the ATX12V1 slot. Where I'm at at the moment is, my PC wont boot up if the motherboard is powered and its not because of a thermal trigger, or the motherboard shorting. Is it just my motherboard is dead? but then why would it have stopped working after booting up fine at first?
Thanks for any help in advance!

Answer:Computer wont boot while my motherboard is powered

Looks like motherboard is shot but worth checking the voltages on the 12v connector

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Every time I power down my PC, it says "Installing update 10 of 16" and will never get past 10. I have left it on for 5 DAYS and it did't get past it. I have tried everything simple, such as restarting it, and it won't budge. This wouldn't be a big problem, because I don't really need those updates, but whenever I try to install something, such as Photoshop, it gives me an error saying "An installation is already in progress" and will not let me install what I want to. Does anybody know why this is happening, and how I can fix it?

Answer:Computer won't finish installing updates when powered down!

Quote: Originally Posted by Sex

Every time I power down my PC, it says "Installing update 10 of 16" and will never get past 10. I have left it on for 5 DAYS and it did't get past it. I have tried everything simple, such as restarting it, and it won't budge. This wouldn't be a big problem, because I don't really need those updates, but whenever I try to install something, such as Photoshop, it gives me an error saying "An installation is already in progress" and will not let me install what I want to. Does anybody know why this is happening, and how I can fix it?

I believe your firmware is corrupted, I would just backup important files and FDR it...

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Recently my laptop displays innaccurate time (loses time)when starting up after powering down 8-10 hours. . I always have to correct the time setting every day. I have the internet time setting correct, I upgraded the bios and reinstalled the cmos/clock software in windows per hp support yet the issue persists. I was wondering if the cmos battery is the problem. Any help would be appreciated. Thanks.

Answer:Computer loses time when powered off. Always have to resync ...

Hi, The RTC (or CMOS) battery should last much longer than 2 or 3 years (the age of your machine), and machine will sync its clock when you connect to internet, no need to reset. I don't believe this is a RTC battery problem. But please try the following methods first Regards.

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I wanted to know if there has ever been a case where one has designed and/or created a fully-functioning computer(processor, memory, some form of screen display, and/or RAM)that is handheld and battery-powered(like a cheap version of a computer).

I want to know if it's ever been done and heard of officially(from scratch, meaning no pre-made parts were used, no "wiring" business ... all parts were developed manually and/or put together on a circuit board as well).

If this has never happened, is it legal to create one yourself and sell it, manufacture it, and/or get it copyrighted and patented?

I am talking no "major" OS here, no high-technology software, and no modern-age hardware.

Just one battery, one miniature processor at over 50MhZ a second, only about 8-28MB of RAM(no permanent memory storage), and a display device and adapters to blit just tiny applets made of 4 or 8-bit pixels(ones that are never stored to any disk drives, and that only run when the machine is on, and all data lost when off).

Something simple like that, doable by maybe one or two people manually and individually.

Has it ever been done ... and how hard would it really be to assemble all the parts?

PS: This is assuming the person(s) are very skilled in electronics(engineering, too, possibly), computer programming, technology, and hardware. Or at least somewhat skilled.

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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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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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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: 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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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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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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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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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: 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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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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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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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 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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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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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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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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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 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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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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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: 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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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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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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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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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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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.

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I have been running this software for months with no problems until someone recently installed some updates to my computer and unistalled an expired McAfee account. She also installed AVG. We tried uninstalling and reinstalling the software and now it does nothing when I try to open it. I am running Vista Home Premium. The following is my current HijackThis log. I uninstalled the software again before I ran the log. Also, I cannot get my computer to go to a System Restore earlier than today.



Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:39:58 PM, on 4/6/2009
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal
Running processes:
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\Program Files\Dell\MediaDirect\PCMService.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Dell Photo AIO Printer 926\dlcxmon.exe
C:\Program Files\Dell Photo AIO Printer 926\memcard.exe
C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
C:\Program Files\DellSupport\DSAgnt.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\Dell\QuickSet\quickset.... Read more

Answer:Pro Tools M-Powered 7

dushun said:

I have been running this software for months with no problems until someone recently installed some updates to my computer and unistalled an expired McAfee account. Click to expand...

You don't indicate the problems you are having, but it is most likely because the PC is infected as indicated by O4 - HKCU\..\Run: [lphcrh2j0et9f] C:\Windows\system32\lphcrh2j0et9f.exe
Removing this item will NOT necessarily remove all infections, so I am asking for a Gold Shield to review the log.

As well, I notice you have Uniblue's Registry Booster installed.

You should immediately uninstall this piece of slimeware while your PC is still running. Regsitry Cleaners to nothing positive for a PC and may well be the reason that your R/S no longer works!

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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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I am trouble shooting my Magicjack and one of the items it recommends is to plug into a powered USB hub because the computer usb may not be providing enough power for the phone handset. I would like to instead put in a "2-Port USB Rear Panel Bracket Host Adapter" Shown in picture. Is this the same thing as a powered usb hub? Will it give me enough power.

Also does this plug into one of those connector ends like plugs into my hard drive or CD drive?

Side note: I am using an old computer with 4 USB's all next to each other and all being used.

Answer:Solved: Powered USB

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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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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 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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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,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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Is there any review of this one?Videocon and Microsoft launch world's first Windows 10 powered TV in India | Windows Central
I can only find some news about it announced but no video content with it in action.
And is there any news on more TV products with Windows?

Answer:Windows 10 powered TV

Seems it would be pretty easy these days to build your own, anything that will run Windows 10 decently, access the network, supports the input devices you want to use (remote control or wireless keyboard/mouse, etc.) and has HDMI output should do the trick.
I've been meaning to build one for years but keep putting it off. I think it's about time.

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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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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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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, 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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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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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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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'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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