I have a PC with Jetway 663AS Ultra mobo,1ghz Athlon processor,voodoo banshee 16mb graphics card, 256mb RAM and 40gb hard drive running win98se. The problem is it keeps restarting itself or freezing randomly. I have changed the PSU and processor fan and also changed over the graphics card with a Geforce 2 but it did the same. Any ideas what might be causing this?
The answer to your problem is the processor is shutting itself down to stop any damage occuring it it. The temp. the althon should run at is approx 42C. The reason for this could be down to an incompatibility between the proccessor and the motherboard, i have the same situation with an AMD Athlon 1800XP+ with the PCChips 810 motherboard i changed the motherboard to a Jetway V266B motherboard and the problem went away.
Not sure if the figures I stated are degrees C or Farenheit but I take your point about the cooling. What happens is the screen goes black and the orange light comes on the monitor but the fans and light are still running on the system. Would this still point to a cooling problem?
I have just had the same problem with my PC shutting down randomly. The problem with mine was the power pack had gone faulty. It would shut down and reboot but the fans would appear to keep running. Also the monitor light would turn orange and then back to green again. Having put in a new power pack all is fine again. Have you a spare power pack to try?