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

Q: 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 ?

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

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

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


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

A:under powered computer???????

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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.

A: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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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.

A: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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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.

A: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 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

A: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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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?

A: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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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.


A: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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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="http://schemas.microsoft.com/win/2004/08/events/event">
<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

A: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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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

A: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.

A: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 machines...it has to be the same one as that which is in the machine or it wont work.

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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!

A: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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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.

A: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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: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

A: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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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!


A: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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  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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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.

A: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       http://support.hp.com/my-en/document/c01853713      http://www.makeuseof.com/tag/3-reasons-windows-computer-loses-time-date/ Regards.

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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?

A: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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  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 

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

  I'd try over in the Internal Hardware forums for some more expert advice:  http://www.bleepingcomputer.com/forums/f/7/internal-hardware/ 
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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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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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!

A:Self-powered usb hub

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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!

A: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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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.

A: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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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 ??

AMDZone.com-AMD PDA article

A: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

From www.amd.com:

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 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.

A:Would a powered USB hub help me?

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

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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

A:CD-Rom not powered

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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.

A: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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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?

A: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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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.

A: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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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?


A: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 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????

A:Powered USB Hub

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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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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

A: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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Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 10 Pro, 32 bit
Processor: Intel(R) Pentium(R) CPU G645 @ 2.90GHz, x64 Family 6 Model 42 Stepping 7
Processor Count: 2
RAM: 3488 Mb
Graphics Card: Intel(R) HD Graphics, 1552 Mb
Hard Drives: C: 931 GB (792 GB Free);
Motherboard: ECS, H61H2-M12
Antivirus: Bitdefender Antivirus Free Edition, Updated: Yes, On-Demand Scanner: Enabled

I have a Canyon 4 port powered hub. When my PC is shut down, and the PSU is
turned off, the power light on the front of the case is still on.
Is this normal or will it cause damage to my PC?

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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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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,

A: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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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

A: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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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

A: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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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 amazon.co.uk) 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.


A: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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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.

A: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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Hey folks,
Well, big problem here. I've built a new rig, and was doing a reinstallation of Windows 7, and I'd left my wife in charge of making sure its set to install to the correct HDD. She'd made a mistake and set it to install on my internal Backup drive which is a Western Digital Caviar SE SATA drive, which meant it was to be formatted. Mistake. When she realized she did it wrong, during the reformat, she restarted the computer. BIGGER Mistake. And now I've tried see if I could reformat it and possibly recover some data with a partition tool of some kind, however dont even think I can get it to show up on Windows, even after checking and trying to go to Disk Management to initialize it, it doesnt show up. It only shows up sometimes when I go to the BIOS after that mishap, I've had it for 3 years with absolutely no problems, so is it a possiblility that this mistake may have killed it? Any guidance would help in what to do next.

A:HDD powered off while formatting...

You can maybe pull the drive and use a usb sata/ide connector and see what you can salvage.And then reinstall if you can.

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Would welcome some advice on hard disc matter.
Got an old windows Netbook which is pretty useless with very low speed, but it's got files on there which would be useful and I don't have space on other devices.
So I am thinking of doing what I did with an old computer before. I took out the HDD and transferred it to a powered HDD case, and used it as external hard drive, which worked perfectly well.
Only problem with this netbook, during a Windows update something went wrong and Windows crashed and was totally unusable and was not able to reinstall it.
So the question is, if I took out the HDD from the Windows corrupted netbook and put it into a powered case would it still work and data accessible by connecting with USB to my Windows 10 laptop.
Or would the previous windows corruption stop it from working

A:Old HDD into powered case

I simply use a littleApricorn single-piece SATA-to-USB cable to connect 2.5" drives to my computer, like this:

Then open a file manager to access the drive ... just like you would an external hard drive in an enclosure.

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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

A: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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