Help! Power Supply Nightmare.

[MichaelPhelph]

I am having interminnant problem with my computer.

It suddenly powers down, while doing my work.
Then when I try to start again. It won't start.

Then when I turn off the switch in the back of power supply and turn it back on. It works fine.

Then after some time, it shuts down again.

I just replaced power supply 2 month ago because my previous power supply was burnt out.

And another thing, I also heard that Intel cpu has come kind of code that power down computer when CPU overheats. I don't know if that is the case here

Please help me.

Here is my config:
PII 400
A-OPEN ZX motherboard
GeForce 256 video card
and all usual stuff.

 

[Killbat]

Well, have you checked overheating? Have you checked the PS overheating? Have you considered that your PS might be overloaded and is shutting itself down?