kony writes:

On 26 Nov 2003 08:30:12 -0500, Sam Goldwasser
wrote:

A corrupted CMOS may inhibit power on.

It can prevent the system from POSTing, but without a viable BIOS,
even without the EEPROM in the board it should still be able to pull
the PSU power-on pin low, turn on the power supply so at least it's
fan would be spinning and voltage levels obtainable.

Apparently not. I had a Compaq system which played totally dead and resetting
the CMOS fixed it.

The question at this point might be, "Which fan isn't turning?".
Apparently some Compaq systems do use logic for the CPU fan control,
it may not spin but the power supply fan should still be on.

Nothing, dead as a door stop.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
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