Computer shutting down

T

TechHead

2[H]4U
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Oct 12, 2001
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Had this problem when I had a 9800Pro too. ANyway, installed the new 6600GT, anytime I do anything to stress the CPU, eg. encoding a DivX, running DVDShrink or playing a game, the CPU usage shoots to 100%, the app runs for a while and then the CPU and HDD LEDs both light up for 5-7 seconds, and the machine just shuts down.

Same symptoms when I had the 9800Pro, but that was faulty for sure. What could be the cause of this? Overheating CPU? Dirty CPU HSF unit? Or is there some other component leading to this? PSU is a 2 month old Antec 400W. RAM is 768MB D43, Memtest stable for 8 hours. Prime95 actually runs fine as well.. leading me to think this isn't a CPU problem. But why does the CPU usage shoot to 100% just before shutdown then?
 
First I would try pulling out that odd ball 256 mem stick. Make sure the 512 stick is in dimm 1, and try again.

Still doing it? Check for a heat related cause. If there is a LOT of dust in the case, tear it down, blow it all off, then reassemble.

Could be a low voltage problem with the power supply as well. Got a meter to check it out?
 
HippieCat said:
First I would try pulling out that odd ball 256 mem stick. Make sure the 512 stick is in dimm 1, and try again.

Still doing it? Check for a heat related cause. If there is a LOT of dust in the case, tear it down, blow it all off, then reassemble.

Could be a low voltage problem with the power supply as well. Got a meter to check it out?
Click to expand...
Me leaning toward the heat problem..

1)133*15- 2Ghz(default for my CPU) - shutdowns

2)200*10 - 2Ghz - shutdowns

3)180*10 - 1.8Ghz - no shutdowns

So I think I need to clear out all the dust on the board and HSF and redo the thermal compound.
 
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