A power supply is an electronic device that supplies electric power to another device, such as a computer, monitor or printer. This is achieved by converting wall power (or mains power) to a lower voltage, and in most cases also from AC to DC. Most power supplies also provide protection from ...

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Should my HP Pavilion dv6000 operate w/o battery pack while using electrical plug-in? Mine won't

While using my computer, it shut down, and I cannot get it to turn back on. I have tried removing the battery to see if the computer would work without it, but it did not. The light is on where the ...
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3answers
701 views

New power supply and now HDDs are not recognized

So I upgraded to a new X4 ULTRA power supply that was recommended to me by a local TigerDirect store. After installing it along with a new liquid cooling system, I booted it up and it automatically ...
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3answers
526 views

Suspected power supply issue? PC repeatedly whirs for some seconds and then dies

I've come home today and switched on the PC I've built a few months ago only for the machine to whir for a few short seconds and then die. It repeats this until I disconnect the power lead. Nothing ...
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196 views

Computer sometimes doesn't boot after power failure, what should I replace?

I have a new computer that behaves strange after a power failure. When I switch off the computer it will not boot anymore. Completely unplugging the computer for about an hour cures the issue for the ...
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2answers
363 views

Is it possible for graphics related glitches to be caused by PSU

To simplify for the reader, an oversimplified version of my question comes first (though perhaps it is enough). SUPER-SHORT version Is it possible for a power supply to be failing in such a way that ...
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2answers
2k views

Dell inspiron n5010 has failed to recognize AC adapter

Recently my dell inspiron n5010 has failed to recognize my 90W adapter (despite powering it just fine). Full error message: "The AC power adapter wattage and type cannot be determined. the ...
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2answers
2k views

DELL Inspiron N 5050 doesn't Power On until I Plug-in the Charger

I bought a Dell Inspiron N 5050 last week, and recently discovered a problem with my laptop. It doesn't Power On until and unless I Plug-in the charger. After I plug-in the charger, it boots up ...
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2answers
505 views

Desktops don't POST, but if left alone for a few days, will boot

I have 2 computers with very similar problems. My first computer is an HP Slimline s3127c dual core AMD processor with a small form factor case. One day it just stopped turning on. When I press ...
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305 views

Power supply does not silent after few seconds

I have a desktop computer that I intend to use as a Linux server. I assembled all components and the computer properly boots in Ubuntu, and works fine, however, the power supply fan does not turn down ...
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1k views

How to force a hard drive to shut down

I have a hard drive in my computer that I'm not using. I want Windows 7 to shut it down. I don't want to have to manually remove the cable. (The reason is that for some strange reason my computer ...
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23 views

Computer dims immediately when remove power cord

I have an Asus Windows 8 computer. Very strange, whenever I remove the power cord, the screen dims immediately. And very dim. The battery lasts for five hours -- but not much use if the screen is so ...
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45 views

What kind of power supply will I need for 780 sli?

I have a GTX 780 and I would love to get another one and use it for sli, I was wondering what's a good powersupply wattage that I should get. I'm currently using a Corsair CX 600 Watt Power supply, ...
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74 views

Linux: disbale USB without disabling power

TLDR I want toggle between the following usages of a usb-port via the terminal: use like a normal usb-port only supply energy to charge Story I recently got me something like a magna doodle ...
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57 views

Computer does not boot, often

I've ran into a issue with my computer that it does no longer reach POST, but simply powers on for a fraction of a second and powers off. But this is not always, some times it boots just normally and ...
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2answers
62 views

Part Number for Motherboard ATX 24 Pin Male Header

The 24 pin ATX connector (male, housing) on my motherboard has been melted to the 24 pin connector from the PSU. I will be replacing the motherboard's 24 pin ATX connector myself, but am not able to ...
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86 views

My PC restarts randomly

I bought a desktop 1 year ago. I used it and it worked very fine. After 6 months it suddenly shut down without blue screen and was responding to restarts. yet it is not solved but I tried a lot to ...
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2answers
114 views

UPS will work on power but not battery

I have an old APC Back-UPS 200 I'm hoping to use for my PC. Connected to power it works fine. When unplugged it emits a "i'm on battery power" constantant tone. The 2 plugs on the back are not ...
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69 views

Losing monitor input - PSU or GPU suspect

I randomly lose video after playing games once in a while (mainly guildwars 2) regardless of graphics quality. Computer still produces sounds and appears working, but monitor reports no input. I ...
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2answers
282 views

Computer will freeze/ lock up after doing relatively stressful things

I'll first start off by saying that the issue GENERALLY doesn't occur unless I'm doing something remotely stressful for my computer. This issue used to occur whenever it felt it was necessary, however ...
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2answers
101 views

Computer won't power on at all

So, this morning I woke up and my computer won't power on at all. There's no beeps, no lights (though I don't think my motherboard has lights on it anyways?). I plugged in my brother's PSU and it ...
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2answers
267 views

Old HP computer powers off after seconds, hard drive still spins. Power supply? Motherboard?

Someone called me saying their computer keeps shutting off. I brought it home to troubleshoot. It's an HP Pavilion 513c The computer powers on normally, but almost immediately powers off. ...
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2answers
94 views

Built a new PC. Not sure what is breaking what

Just built a new system with the following problem components: Corsair 650w PSU Gigabyte Super OC GTX 560 ASUS P8Z68-VPRo motherboard I turned the machine on first without installing ...
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2answers
246 views

Central Processing System gets Hot

I have an Intel Desktop Board with an Intel Pentium D processor installed. My problem is that the processor stays warm when idle i.e. 55 degrees C . But under load the temperature rises drastically ...
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1answer
500 views

PC Crush-Reboot After Exactly One Hour

My PC has been powering down and rebooting after exactly one hour every time I turn the thing on. It's been happening for about 3 weeks now. The spec of my self-built machine (rough in places sorry) ...
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1answer
88 views

Can 20pin PSU cause usb stick corruption

Getting constant usb stick corruption issues when using an old 200W PSU with 20pins with both NTFS and FAT32. Can the old PSU cause the corruption? PC is running fine otherwise (no BSOD, freezes).
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144 views

Computer inoperational but motherboard LED on

My friend's computer switched off suddenly and since then nothing happens when you press the power button - no spinup, fans or anything. The only sign of life is that the motherboard LED is on. Is ...
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1answer
237 views

24-pin power supply will only work on 20-pin computer

A couple of days ago my PC's 24-pin ATX power supply began to make a bad, electrical burning smell. I took it off and replaced it with another (working) 24-pin supply I had lying around. That worked ...
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1answer
501 views

My ASUS 1005HA will not turn on

My Asus EEE PC 1005H refused to turn on this morning. No lights went on, and there's nothing on the display, it seems completely dead. It worked alright yesterday but I noticed this morning nothing ...
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1answer
271 views

About PSU calculator

1) WHat is the wattage after the calculation of the PSU calculator, such as this one? Is it the wattage I know to buy for my pc? If it said 450W, and I buy a less efficient, cheap PSU of 450W, which ...
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1answer
50 views

Power Requirements for my setup.

I understand that sometimes there may be a situation where the PSU is way more than required but in this case of mine, I'm not too sure. Sometimes when I play games, my computer will crash and ...
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1answer
436 views

xfx 680i motherboard failure?

At some point last night we must have had a blip in our power, as the stove clock was blinking like it would had their been... a blip in the power. When I came into my office this morning, my desktop ...
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1answer
60 views

Constant beeping with new PSU, no video output

So, my friends computer is not producing video output. The monitor works, I've tried the CPU and RAM inside of my computer, so I know they work. On the initial build we forgot standoffs and the ...
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1answer
71 views

Computer randomly shuts down with a fading alarm power button and CD drive

I am currently experiencing something very very odd. Having build my PC myself, I have never had any issues (or anything heat related). A few moments ago my computer shut down very randomly and ...
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1answer
474 views

IBM ThinkCenter doesn't power up?

My old ThinkCenter M-8143 doesn't boot. When I press the power button nothing happens. It's a brand new power supply, so can't be an issue with the PSU. *If I remove the 4-pin CPU power connector ...
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1answer
2k views

Computer won't power on except when I remove the 2x2 connector

My friend's computer wouldn't power on. The fans (and a blue LED near the power switch) come on briefly and then turn off immediately. I have removed the connections to the drives and the only PCI ...
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votes
1answer
17 views

NVidia GeForce GTS250 driver issue

Recently at a lan party, I used a GeForce GTx560 for which I installed Nvidia's 340.52 driver which worked perfectly fine. At the time I was still using a 32-bit version of Windows. I have since been ...