> > > any idea on how to force ATX power supplies to restart after a power
> > > outage without having someone press the 'power' button on the front
> > > panel ? All the motherboards i can find now have their bios with two
> > > options:
> > > 
> > >   Disabled
> > >           no automatic restart on power failure
> > 
> > You _should_ be able to change this.
> > 
> > > none of them is satisfactory especially for picoBSD things such as
> > > routers or firewalls where an UPS is overkill...
> > 
> > You can always hotwire the supply; go dig up a pinout for the ATX power 
> > connector and you'll see that if you ground the power-on line the PSU 
> > will come up...
> 
> It's not just a ground, the line that brings up the power is a momentary
> switch, so a longish (about 1/2 second) pulse would do it.  That would

The switch is not connected to the power enable line to the ATX power
supply; it's connected to logic on the system board which in turn (in
some cases) drives the PE line.  If you ground the power enable line for
1/2 a second, you will get (at most) 1/2 a second of power.

Sheesh.  You could at least speak from _experience_ here.

-- 
\\  The mind's the standard       \\  Mike Smith
\\  of the man.                   \\  [EMAIL PROTECTED]
\\    -- Joseph Merrick           \\  [EMAIL PROTECTED]




To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message

Reply via email to