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0 votes
1 answer
39 views

Are there any safeguards for the case that the ac power is disconnected from a Desktop PC such as an Asus Rog or a small Alienware

Some small form factor PC's such as Alienware (http://www.dell.com/us/p/alienware-steam-machine/pd?ref=PD_OC) or Asus Rog (http://www.asus.com/us/Tower-PCs/ROG-series-Products/) have ac adapters ...
0 votes
1 answer
87 views

Computer not booting up

The hdd light comes up for a few seconds and goes off and the keyboard lights flash for just a millisecond. I tested the power supply with paper clip method and power supply works fine. There's no ...
0 votes
1 answer
6k views

I'm in the US and computer only works when power supply is in 230V position. How do I diagnose this?

So, I replaced a computer PSU about six months ago. And, the computer power down intermittently. I've found: it's not over heating. Monitor shows it running cool. it's not graphics related. ...
1 vote
1 answer
55 views

Desktop doesn't boot [closed]

So I think I stuck a chunk of incompatible RAM on my mobo, smelled a burning smell and after switching out the RAM my machine wouldn't boot. Assumed mobo was fried and got a new one. I also recently ...
2 votes
1 answer
95 views

Computer mysteriously seems to power on after surge, but no video or network

I have a box running Linux Mint I've been using as a file/plex host for about half a year to a year. Last night there was a brief power outage and I shut down both of my PCs (linux and Windows machine)...
0 votes
1 answer
73 views

Graphics card possible power issue

I had an nVidia GTS 8800 that stopped working suddenly. I thought the card had just died so I purchased a Sapphire Dual-X R9 280X 3GB GDDR5 card to replace it. The new card does not work either. ...
2 votes
1 answer
1k views

my power supply died dramatically; is it safe to simply replace it? [duplicate]

my power supply died last night rather spectacularly: blue sparks, popping sounds, a smell of burning plastic. the computer shut down, then tried to start itself up again, and sparked and popped some ...
2 votes
2 answers
130 views

Unable to shutdown, who to blame?

My PC has always suffered from this problem: upon reboot, the power, instead of staying up and running until BIOS POST, most of the time (but not always, and that's why I don't think this has never ...
0 votes
3 answers
4k views

Burned PSU possibly damaged hardware

My PSU recently burned out, I don't know if other hardware was affected is it safe to buy a new PSU and use my PC as I normally do? How do I check for potential damages? CPU: i7 2700K 3.5GHz GPU: ...
1 vote
2 answers
964 views

Ran power through a USB port- am I out of luck?

I'd like to preface this by saying I'm an idiot. Long story short, I stuck my Acer Aspire V's power cable into one of its USB ports and the computer unceremoniously died. Plugging it in shows no ...
0 votes
0 answers
817 views

I just assembled my computer and the motherboard started smoking, how do I know which parts are affected?

I was changing my desktop case and after I got all parts together and turned it on, the motherboard started smoking next to the 4-pin power cable (the one that provides power to the processor). I'm ...
0 votes
0 answers
376 views

How can I troubleshoot why my computer shuts down unexpectedly some time after gaming

I played Shadow of Mordor on optimal settings, the temperatures were good. After I was done playing, the temperatures got back to normal in seconds of course, yet 5 minutes later my computer just ...
0 votes
1 answer
459 views

selfbuilt pc shuts down and restarts. 1 long and 2 short beeps

I have built a new pc and I almost finished. When I turn the computer on I starts up but then shuts down again. The beeps I'm getting is 1 long and 2 short which I think is the video card or ...
0 votes
1 answer
2k views

POST failure - Motherboard, PSU, GPU or other?

Last night, I was playing Far Cry 4 and had been at it a good hour or two when the sound suddenly broke up and stopped; next the PC switched itself off. It tried to reboot, but keep failing in a "...
4 votes
1 answer
207 views

Is it possible to get a chain burnt of processors/mb?

The problem is as follows: I just got my dad's computer and have (had) a bunch of MBs, AM2 processor standing out. His AGP slot had some problems and the computer refused to start with a video card ...
1 vote
3 answers
15k views

Computer won't turn on, how to diagnose why?

My computer, ASUS MB, ThermalTake PSU, won't turn on after shutting down last night. Short of taking out the power supply and putting in a new one, are there any tricks to figuring out/fixing the ...
3 votes
1 answer
12k views

Acer Monitor - No Response to Power Supply?

Model No is S231HL, for reference. As I was packing to leave my dorm, I unplugged it for the first time in a long time. It was working just a few minutes before this. I then realized I wasn't sure ...
1 vote
2 answers
5k views

Accidentally got a little bit of water in uninterruptible power supply outlet; just let it dry, or trash it?

So, I had some water in my home office, I know that wasn't very responsible, but let's not point any fingers here. Long story short, a bit of water ended up spritzed onto some of the actual plugs of ...
1 vote
1 answer
3k views

Short Circuit - can it cause/detecting damage

It's a fairly simple question, can a short circuit in a modern PC cause damage, or are they pretty well protected? The situation being my PC shutdown unexpectedly on my wife. I had to open it up, tip ...
6 votes
1 answer
1k views

Debugging a "Somewhat" Faulty PC Component

TL;DR: I have a component that fails very infrequently, preventing my computer from POSTing (I am suspicious that this may be a motherboard issue). Since I cannot reliably reproduce this error, what ...
2 votes
2 answers
13k views

PSU Noise when turned off

When my PC is turned off and I bring my head very close to the PSU, I hear a high frequency noise. Is that normal? I can't hear when I am like 2 metres away from it. And it's only there when turned ...
1 vote
0 answers
884 views

Agghhh! UPS Back-Up, Laptop Charger, Sparks

Boy… ok. This is so frustrating! Ok so, I've been getting a whole lot of problems with the electrical grid here lately: spikes, surges, lows, brown-outs, all kinds of problems, it's terrible, short-...
0 votes
2 answers
380 views

Computer doesn't start at all

I have a desktop computer that won't start at all, I had it for years, and now suddenly when I press the power button I get no beeps, no fans spinning, no hard disk spinning. And the amazing thing ...
0 votes
1 answer
298 views

Computer Restart : it shutdown but it never power up

I am seeing an used desktop computer with MSI motherboard and runs Windows XP, the problem is when i restart the computer using Windows >> shutdowns >> Restart, the computer shutdown but never power ...
1 vote
1 answer
62 views

my computer doesn't charge; the plug on my computer doesn't work

my computer NEVER works on just pure battery power. It always has to be plugged in. It always says "0% available. Not charging" but again, will work when its plugged in. Is this faulty mother-boarding?...
2 votes
1 answer
125 views

Computer is OFF, and fans turn on and off twice a day

We have an OptiPlex 755 desktop acting quite strangely here. It's powered off, not in standby or hibernate, and from time to time it will just start spinning its fans for a few seconds, and then turn ...
1 vote
1 answer
293 views

My computer will not turn on

I recently built a gaming PC. It was working fine before the following events: I installed a graphics card driver update then: in Windows it said that the User Experience Index needed to be refreshed, ...
0 votes
2 answers
335 views

BSOD and flickering graphics on Windows 7 64bit [closed]

I recently purchased a new motherboard (Asus P8 Z68-V Pro) Processor (Intel Core i5 2500K) and 8gb of DDR3 RAM. Since installing these I have had a lot of problems with at first flickering graphics, ...
2 votes
4 answers
6k views

Would an underpowered power supply cause lockups?

I my quest to find out what on earth is causing random lockups, I'm starting to think it was the power supply. The reason is that the problems started soon after I put my graphics card (old Radeon ...
0 votes
1 answer
2k views

I may have fried two completely different computers

I have two computers: my main one, and an older one. Currently, both are fully hooked up, and neither will respond when the power button is pressed or held. No fans, no lights, no sign at all. Prior ...
1 vote
0 answers
2k views

My desktop won't boot or turn off, and there's no output - is it an issue with the motherboard or the PSU?

I have a desktop that won't boot, and the monitor doesn't turn on. The weird thing is as soon as you plug the computer, it turns on and then you can't turn it off. There's no light on the board to ...
2 votes
0 answers
67 views

PSU and motherboard power up failure [duplicate]

My girlfriend's computer is not booting any more. Here is a list of the hardware and the tests I've made so far: MB: Asus P5QL-E PSU: Thermaltake Toughpower 600W First failure: the PC was off, ...
-6 votes
1 answer
634 views

Computer Randomly Powers Off

A few months ago my computer started randomly powering off, sometimes I would get a few hours, sometimes a few days. I first replaced the power supply (PC Power and Cooling Silencer Mk II) which ...
7 votes
2 answers
1k views

New build not powering up at all after connecting psu cables to hard drive

I recently decided to build myself a new, cheap(ish) rig mainly for HTPC use and I have now run into a BIG problem. The system simply refuses to show any signs of life. Problem: When I press the ...
3 votes
1 answer
1k views

Thermaltake PSU button won't stay in the "on" position

My Thermaltake Toughpower Grand 750W PSU (P/N TPG-750M like on their web page, but the design shown below) has a mechanical AC push button rather than an on/off switch, and after turning it off today ...
1 vote
0 answers
782 views

What can cause "Reboot and select proper boot device" other than hard drive issues?

I'm having some weird issues with my computer that I'd be hugely appreciative if someone can help me troubleshoot. Recently, my HTPC will start fine, then after 20-30 minutes it will freeze up and ...
0 votes
1 answer
2k views

Compaq Presario CQ40 unexpected turn off

My Compaq Presario CQ40 (yeah, its pretty old) suddenly turns off after about 1/2 - 1 hour usage without any notice or warning. The power cable and adapter works fine (indicator bulbs show that power ...
0 votes
1 answer
72 views

PSU Issues - Antect 1000w Quattor

I have a server using a 1000w PSU from Antec. My Raid 6 was becoming degraded and I tried to repair without success. So I have looked at the drives and they are all operational. I have now found that ...
1 vote
1 answer
80 views

Video card and PowerSupply problems, perhaps? I don't really know

I have an Asus M4A77TD PRO MoBo, and a Gigabyte Nvidia GTS250 as video card. For several months, I have been detecting some strange things: Random hangs for a period of time in all games, for a start. ...
3 votes
1 answer
820 views

Potential "latent" damage after short circuit on video card?

Latent is probably not the right word. I dropped a short metal scrap on a running video card. Obviously not a very good idea. A small spark was seen, and the PSU automatically shut down itself. I ...
2 votes
2 answers
10k views

What caused a capacitor in the power supply start smelling?

I was using my computer in the morning then later in the afternoon I noticed some bad smell coming from the power supply. As I checked in, I noticed that one of the big capacitors was leaking and dry. ...
0 votes
2 answers
1k views

intermittent power up failure after shut down

My desktop with ASUS P5L-MX motherboard does not immediately want to boot up whenever it is completely shut down. When the switch is pressed there are no visible lights, fan motion or anything. It ...
0 votes
0 answers
413 views

Cannot boot anymore, power supply broken?

My desktop computer is not able to boot anymore. Currently I have breadboarded my computer taking everything out of the case so the motherboard is only connected with: 500W power supply, connected ...
1 vote
2 answers
2k views

Re-cased my computer now the power plug keeps shorting

I've just re-cased my computer. I got the new case free and thought I'd be able to swap everything over myself but apparently I've done something wrong. I'm OK with components generally but wasn't ...
0 votes
2 answers
3k views

Does a Samsung G3 Station external hard drive stop working when power supply is too high? [closed]

I have a Samsung G3 Station 2TB external hard drive (link to PDF specs here). It was working perfectly when I accidentally plugged it in my notebook's power source. Now, it doesn't work even with the ...
0 votes
0 answers
144 views

Windows 7 remains powered on when restarting

I'm running windows 7 x64 on an MSI P67A-GD53 motherboard, in an Antec P280 Super Midi Towercase with a Corsair 650w PSU. I've just installed a second instance of windows 7 x64 on a separate disk (...
4 votes
2 answers
1k views

Why does my computer randomly power off?

Situation: have a 6 year old PC but it powers off randomly, sometimes it will take a few hours, or sometimes it won't happen at all when it does happen, the system loses power, but the mobo power ...
1 vote
2 answers
2k views

Repair damaged PSU fan

I knwo this sounds QUITE crazy (not for the techies though). I had a Chieftec 450W PSU which died after I "transported it" to my friend so he can use it afterwards. (Bought a new PSU so I didn't need ...
1 vote
3 answers
392 views

New harddrives failing within weeks

I've experienced 8 hard disk failures in 3 months and have tried many things to solve the issue permanently but I have failed. I would like to know if you have any advice for me. System was running ...

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