[Tfug] Power Problem (slightly OT)

[Jeffry Johnston]

Maybe the front power button hardware is worn out or broken?

Jeff

On Jan 22, 2008 6:58 PM, Choprboy <choprboy at dakotacom.net> wrote:
> On Tuesday 22 January 2008 14:17, Jim Secan wrote:
>
> > More info.  There's a power LED towards the bottom of the MOBO.  It's on,
> > and solid green, which I believe means that the MOBO thinks power is on
> > and OK.
>
> Actually, that probably means that the motherboard is correctly receiving the
> +5Vsb rail from the powersupply. This should always be on, indicating the the
> BMC (Baseboard Management Controller, typically a small PIC or dedicated
> purpose circuit) is powered. The BMC does things like watch the front panel
> contacts for power/reset presses and then grounds the PSON from the power
> supply or holds down the CPU reset line. It also typically does things like
> watch chassis intrusion switches and act as an emergency shutoff if
> temperature goes thru the roof.
>
> > Last ditch desperation - does anyone know if there's a BIOS control on
> > this thing that might have it locked up, and if so is there some way to
> > reset it?  I've pulled the power plug several times to no avail.  I see
> > this beast has an on-board battery - (1) would a dead battery cause all
> > this mayhem, and (2) if I pull and reset the battery might that reset the
> > BIOS ROM?
>
> Possibly and Yes. They should probably also be a jumper label "BIOS"
> or "PASSWD RESET" or something like that, that also resets the BIOS. A
> completely hosed BIOS could cause the problem I suppose, though I wouldn;t
> think of it as a high probablity.
>
> Adrian
>
>
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