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SubjectRe: Crash
> Is it possible to screw up the hardware entirely from software? I made

In an abstract theoretical sense yes. Accidentally almost impossible.

> know is if there is any way to screw the board from software in such a way
> that power off and power on does not bring it up ?.

The only people are ever likely to do is to corrupt the CMOS, which is easily

> Its a dual pentium-3 machine. The power supply is gone also, the power
> supply from the crashed machine does not bring up another normal computer,
> also power supply from normal computer does not bring up crashed computer.

Sounds like a rather more physical layer problem - like a power spike and
PSU failure.

BTW: Always put a voltmeter on a power supply before you swap it like that
to test it. You need to check the voltages under load look sane otherwise you
may end up using a failed PSU to blow up other motherboards which is a
rather expensive debugging error ;)


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