Computer crashes while gaming

I built this computer not long ago and it was running pretty good, now a month later I'm having problems. I'm using the video card NVIDIA GeForce 7900 GS video card. I'll be playing a game for 5 minutes or so and the FPS will get really low then my computer will just shut off. It seems like the video card is trying too hard or something. I'm thinking the video card is getting too hot then shuts off to save itself. But, the case I have is very cool so it's not a case cooling problem. I haven't updated the drivers because when I went to the site it was kind of confusing and the game worked properly so I just didn't bother, could that have anything to do with it? Any help would be great :)
 
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I just downloaded rivatuner to check some temps. I tested the game out until it started getting chunky then exited the game. The core temp was a steady 47 degrees the whole time.
 
I built this computer not long ago and it was running pretty good, now a month later I'm having problems. I'm using the video card NVIDIA GeForce 7900 GS video card. I'll be playing a game for 5 minutes or so and the FPS will get really low then my computer will just shut off. It seems like the video card is trying too hard or something. I'm thinking the video card is getting too hot then shuts off to save itself. But, the case I have is very cool so it's not a case cooling problem. I haven't updated the drivers because when I went to the site it was kind of confusing and the game worked properly so I just didn't bother, could that have anything to do with it? Any help would be great :)

Have you overclocked?
 
What powersupply do you have? It could be not outputting enough power and causing the card to not work properly.
 
Check the amperes on the +12v line. This specification should be listed on the side of the PSU. You'd need at least 20a, and while it's unlikely you have less, I thought I'd check anyways.
 
Now that you guys mentioned it, I think it might just be the PSU. When I got all of my computer parts I ordered a case that was too small for the components and couldn't wait to get it running so I put everything together without the case to test it out until I got the new case I ordered. It was running perfectly until I installed everything in the case a few days later. After installing the components into the case the FPS rate was fluctuating from really good to really bad for no apparent reason.

I'll crack the case open later today and read the specs herm, thanks for the info.
 
Check the amperes on the +12v line. This specification should be listed on the side of the PSU. You'd need at least 20a, and while it's unlikely you have less, I thought I'd check anyways.

I checked the PSU and its 12v. I didn't know where to look for the 20a? Were you referring to the current? Here are some of the specs that I saw.

Input: 115 / 230v
Current: 12a / 6a
Frequency: 60/50hz

The PSU is a turbolink ATX-CW500p4, I got it used from my roommate who upgraded to an 800w PSU. My system is pretty basic, 2.2ghz with 2gb of RAM and the geforce video card.

Is there some way to test the PSU for stability when running games?
 
That specific PSU has dual +12v's, adding up to a total of 34 amperes. More than enough. Download and run Orthos,

http://sp2004.fre3.com/beta/beta2.htm

this will seriously stress your PSU, CPU and RAM taking those out of the equation if it can pass, say an hour or more of testing. Use the large FFT's option.
 
I did a BIOS test, I believe it's called. The prompt when you first turn on the computer...

I found out the problem was my CPU was getting too hot. It was around 100 degrees+ :eek: I'm not sure why it's that hot. But, I'm going to try and put more of that paste stuff on and see if that'll help. :confused:
 
100*F isn't hot, but 100*c is, very much so. The problem is when you enter the BIOS your CPU will be Idle, and getting 100*c Idle must mean you have a very big problem.
 
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