It's an Athlon 500MHz (Slot A) in an MSI 6167 ATX motherboard with
AMD750 chipset and ATX chassis...

Just after I installed Mandrake 9.0 I shut down the machine and it
switched off as expected.

Since then whenever I shut down it goes all the way through the process
and displays "Powering Down"* There is a click as from a relay or maybe
the harddrives stopping that has always in the past accompanied a
power-down, but the screen is still displaying and the power LED is
still on.

The BIOS appears to be configured correctly.

The Indispensible PC Hardware Book does not mention power control.

The ATX 2.01 spec says:
"PS-ON is an active low signal that turns on all of the main power rails
... Power should be delivered to the rails only if the PS-ON signal is
held at ground potential."

There doesn't seem to be much room for error there, but I suppose all
this goes through the chipset drivers anyway. The AMD site is not
forthcoming with a spec for the 750.


What should I check next? Are there any configurable parameters?


* Or something similar, for personal reasons I only have a few hours a
week infront of this machine, and I haven't configured email yet, sorry.

-- 
Richard Urwin, Software Design Engineer
Schenck Test Automation
Braemar Court, 1311b Melton Road, Syston, UK.
[EMAIL PROTECTED]

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