On Tue, 2 May 2000, Kenn Humborg wrote:
>> Will an ATX PSU work with an AT motherboard?
don't think so, as ATX motherboards need a pulse from the power supply to
actually _turn_on_ the MoBo. The ATX boards are controlled by a software
switch that "saves" you having to actually switch off the power switch, i
think its called soummit like power saving(don't know the reason).
I tthink (fro looking at the pulse) it has to be approx 5mS pulse (the one
i looked at did).
Good ole' AT boards, once you flick to power switch the MoBobe comes live
and all the nice likkle electrons start running around it.
>> Will a 200W PSU be OK for a P133, bunch of cards, two
> hard disks, and a CD?
sorry don't know.
You could of course, build a small 555Timer OneShot circuit, that would
generate the necessary pulse, but that would be abit OTT, or would it?
-----
rgrds,
...bernard..
[*Bernard Tyers*http://snet.wit.ie/bbt*]
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