My system, which is otherwise stable, has started turning off after a period of high system demand.
It shuts down instantly, powering down both the machine and the monitor and not attempting to restart itself.
Running XP Pro, Asus P5n-E SLI, 2.4 g proc, 2 gbs ram, Nvidia GTS250,
It only occurs after 10-20 minutes of high-usage (like when playing a game or watching an hd video). In periods of low usage, the computer is infinitely stable.
This is an easily duplicated problem that's only been occurring over the last month. The only change I've made to the machine was a video card that I'd gotten six months ago. PSU was handling it fine at the time. Also, not sure if video card power draw fluctuates based on demand, or if it draws as much as it will theoretically need at any time.
My event log lists this as a user initiated shut down. Did a virus scan, didn't see anything.
Thinking that RAM sticks might be going bad... and that the computer might be initating a shutdown because the sticks are shorting something... maybe? Any thoughts?
PS: What I've done so far:
Updated video drivers, ran memcheck86 (pass), cleared all non-essential startup programs, ran virus scan (pass).
Temp should be good. I've been watching that pretty closely.
About the PSU- I'm a little confused on why it would stop working during high-video demand but not any other time. Isn't the power draw the same either way?
Might try cleaning it out. Does seem a bit nasty in there.
Here's the system specs I can think of. Is there something else I should add?:
Processor: Intel(r) Core 2cpu 6600 @ 2.4ghx(2 cpus)
2046MB Ram (kingston)
Nvidia geforce GTS 250
ASUS P5N-E SLI motherboard
Clean the dust out that may be whats causing it if it is overheating because it could be blocking proper airflow. Get yourself one of those aerosol spray cans you can get them from frys for like 5-6 bucks.
PSU puts out 850. I did end up getting the dust canister, which I think fixed it. There was a bunch of junk in the heat sink that insulated the heat. Weird that it didn't show up on my temp gauge on the tower. Might not have gotten to the sensor?
Anyway, I think it's all good. Silly problem- but I thank you for the help!