Computer turned off unexpectedly.

August 5, 2009 at 06:18:33
Specs: Vista
I have a custom built computer. I can list the parts if you need them. I've been through alot of computer problems...and I have yet to encounter them all. I finally have a new one, and it is so hard to pinpoint. This problem has only occured twice, and if I can fix the problem before it gets worse, I would like to. Here goes:

I leave my computer on pretty much all day, but have it set to the power savings mode. After 30 min idle the monitor shuts off. After 1hr the computer goes into power saving mode...or sleep mode. This mode requires me to press the power button for it to activate again. I give this information out to show that my computer is active quite a long time.

I also play on the computer as my source of gaming. There are times my computer is on for a solid 8 hours with out a rest. To give a real life example, I don't work on the weekends and I play quite a bit on the weekends. 20+ hours sometimes. my problem. I was playing a game called Dragonica yesterday. The computer had been left on all day. I got home, and started to play. After about 2 hours of gameplay my computer just turned off. This had happened once before while playing WoW. Yet, I turn around...turn the computer back on....and it works just fine. No problems after that. I don't quite remember how long ago the same thing happened, but I'll say it was about a month ago.

Here are my parts:

Microsoft Windows Vista Home Premium SP1 64-bit for System Builders - OEM

Rosewill Wind Ryder RZLS142A-P YE Dual 120mm Cooling Fans and Mesh Design Front Panel Steel ATX Mid Tower Computer Case - Retail

ASUS (Dual Panels) BLACK Drive+ WHITE Panel IDE DVD-ROM Drive Model DVD-E818A3 - Retail

GeIL Black Dragon 8GB (4 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Quad Channel Kit Desktop Memory Model GB28GB6400C5QC - Retail*****

*****Only 3 sticks are in my comp, 1 was defective. I have a 1 gig stick of pc6400 kingston in my computer as well*****

AMD Athlon 64 X2 6400+ Windsor 3.2GHz Socket AM2 125W Dual-Core Processor Model ADX6400CZBOX - Retail

Western Digital RE2 WD1601ABYS 160GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Retail

Video Card is a 7900 gs ko Nvidia

All of my parts are on The video card was a hand me down (and for some reason i feel that is where the problem may lie).

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August 5, 2009 at 08:49:22
I may be wrong, but it sounds like something might be overheating or simply failing. From all I've ever been told, if your PC turns itself off unexpectedly, it's telling you there's a problem. Can you push F12 at the Bios screen and run a diagnostic? It might tell you if something is wrong that's easy to detect.

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August 5, 2009 at 09:04:12
I'll do that when I get home. Hopefully nothing is failing...its only 6 months old ;/.

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August 5, 2009 at 13:05:58
Dusted it out. No diagnostic. Idle temperature after dust out was:

80F Comp
111F CPU

But if this is the temperature, it always runs at that temp. I've never changed any settings.


Played some rounds of Dawn of war 2, temp went up to 109F. The CPU stayed at 111F. The side is off as well.

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Related Solutions

August 7, 2009 at 00:38:19
It actually seems that it's running a bit hot to me. I'm heard of temps from 60 to 75, but idling at 111 seems quite high. I'll check around a bit and see if I can get some specific information for your CPU and it's recommended running temp.

As for the video card, I know when I play the Sims 3 when in CAS, my graphics card really starts whizzing. It's a supported card for the game, but this is a graphics heavy area of the game that thankfully I don't have to stay in long. From what I can see on Nvidia's page, the card seems to be about 3 years old, released in 2006. Do you have onboard graphics? Not to use full time but to pull out the card and see if it's the card causing the problem?

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August 7, 2009 at 04:20:56
There is an onboard graphics card. But since the post I've been playing alot and it still has not happened. This occurence still has only happened twice. My guess is that if reaches its limit of hot when it cuts out. I don't know much on how to keep it cool. I don't think I need to re-apply the grease yet (I applied it when I got it in Feb/March). I'm using the standard fan that came with the processor. As I stated before...its hard to find out what it is if it doesn't keep happening. *Shrugs*


I don't mind to buy cooling accesories for my computer if you have suggestions :).

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August 7, 2009 at 21:05:15
I think your looking in the wrong place.

Your problem reeks of your PSU about to fail or just overloaded rails.

Could even be from brownouts causing the amperage to drop too low - but the voltage will remain fairly stable so you may not see any real drop in programs like Speedfan.

Im pretty sure there is something you can buy to filter the power to the PC like a UPS but not. Also having the PC on the same circuit as the fridge/freezer, AC units and the likes can be a PSU killer.

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August 9, 2009 at 02:21:55
Well...if it is the PSU, I'll know when it fails....because it won't come on LMAO! But ever since I posted....still hasn't turned off. We will see what happens. If something in my computer fails, I will post it here so people can have solutions to a similar problem.

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August 12, 2009 at 04:53:26

So this morning my computer would turn on, but there was no signal to my monitor. I did the standard stuff by testing parts...and I may be correct on my first assessment. I just need confirmation.

My video card was plugged in, i switched to the onboard graphics card. No signal. I completely unplugged my video card, had my onboard video connected to my monitor. My computer went through the motions of turning on. It "installed" the onboard video card.

I just want to make it the pci-e video card that I pulled out that is broken? Or can my pci-e slot be broken?

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August 12, 2009 at 09:36:37
MiyuEmi: 111 degrees Celsius is quite high-but 111 degrees Fahrenheit, which is about 44 degrees Celsius is not quite high.
Dravirex: Where are you checking the temperatures ? I would run a program like GPU-Z for the video card temperature while you're playing some of those games to see what the temperature is doing. Another good program is Real Temp, which will show your cpu temperature as well.

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August 15, 2009 at 07:11:20
Bought a new video card. Everything seems to be running fine. I will post later if I have more problems with the turn off issue. I really do believe my video card was going out though. We will have to wait and see.

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