After playing games for a while my comp screen goes black and immediately restarts.
All fans are working however core temps get to 67c when playing call of duty world at war and other games.
I have intel core 2 duo e600 and a 9800 gt. Nothing is overclocked.
I had a similar type of problem with GTA San Andreas. My compy kept restarting when I tried to rescue a lass from a burning building. Turned out that I needed to up the voltage slightly on the LDT bus or Hypertransport bus whatever its called. I had a DFI CFX3200 mobo with an Athlon 64 FX-60. Try knocking up the voltage on the Hypertransport bus or whatever Intel uses. Hope this helps. Also kit out your rig with tonnes of fans just to be on the safe side.