pc shuting down prematurely

  HOPE 18:39 23 Jun 05
Locked

My pc shuts down suddenly and totally roughly every half hour after use, the only sign of life is the light on the front of the tower flashing.If I switch it off at the mains and leave it for about 20 minutes it will restart every time. My pc is a four year old mesh with a 900 athlon asus motherboard and I have widows xp.I have tried a new graphics card but this has made no difference.Can anyone give me any advice on where to start.
Many thanks steve

  Fruit Bat /\0/\ 19:12 23 Jun 05

Usual reason is overheat use
Motherboard Monitor (1,736K) click here Monitors temperatures etc. to see what heat the case and CPU are ruuning at.

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