Computer shutting down.. seems random

geckoman

Limp Gawd
Joined
Feb 9, 2003
Messages
325
A couple weeks ago, I decided to upgrade my pc case... I got an NZXT Trinity Case with 400w PSU, and upgraded to 2gb of new RAM at the same time. Prior to doing this, my computer was working fine, and I frequently played Battlefield 2 for hours on end with no problem.

I moved all the hardware over to the new case, and put the temperature probe in between the CPU and the heatsink and installed the new RAM. I did noticed that when I mounted the ATX mobo, it needed to flex a bit when I was screwing it down. It seemed like the case had a bit of an "oil can" effect on it, causing the mobo to flex about 1/8" in height when tightened down... I don't know if that could be a problem but thought it was worth mentioning.

So, after getting everything set up, I had problems with the computer shutting down while playing BF2.. and even while doing things like photo editing. I then found out that putting the temp probe between the cpu and heatsink was a bad idea, so I moved it. I continued to have problems with the PC shutting off. So then I thought it was either the RAM or the PSU... so I put the old RAM back in.. problem continued.

So, yesterday I bought a brand new Antec PSU and got it installed today. I got everything hooked up, plugged in, started it up and did my test - played BF2 ... it lasted about 4 minutes until the PC shut off. I double checked the heatsink on the cpu and it is seating firmly.

So.. I've put the old RAM back in, and put in a different PSU.. problem persists. I have plenty of cooling, 120mm fan in the front, 120mm fan in the rear, 80mm fan on the side, 80mm fan on the cpu... and after the shutdown, just to check, I was able to touch the heatsink on the cpu and it was just moderately warm.

What the hell is going on???
 
what are the amps on the 12v rail/s? and what video card do you have?
 
he's referring to your psu. on the side of your psu it should list the amps for each rail.
 
geckoman said:
I did noticed that when I mounted the ATX mobo, it needed to flex a bit when I was screwing it down. It seemed like the case had a bit of an "oil can" effect on it, causing the mobo to flex about 1/8" in height when tightened down... I don't know if that could be a problem but thought it was worth mentioning.

You probably have a standoff under the MOBO where one does not belong.
 
The 'flex' was the problem! i removed the 1 screw that was causing the flex... played bf2 for an hour straight with no probs! thanks!
 
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