On Wednesday 09 May 2012 21:31:39 Thane Sherrington wrote:
> At 05:15 PM 09/05/2012, Gaffer wrote:
> >On Wednesday 09 May 2012 17:24:06 Thane Sherrington wrote:
> > > I'm working a AM5100 tower that was incredibly dirty. I cleaned
> > > it, but the CPU heatsink was so dirty I had to replace it. After
> > > replacing, the damn machine won't POST. It POSTs as far as 6.1
> > > (could be b.1) on my POST card. I've swapped out RAM and CPU
> > > (both of which test fine on another board). Any ideas short of
> > > replacing the board?
> > >
> > > T
> >
> >Is the fan plugged in correctly ?
>
> I *think* so. The new fan is a 4 pin, and the old was 3. For the
> heck of it, I reconnected the old fan (and connected the current CPU
> fan to the case fan connection) but it gives the same error. I'm
> thinking the motherboard must have died, but I can't figure out how
> it happened.
>
> T
A lot of mainboards will not post if the fan is incorrectly plugged or
wired. There is usually a sensor on the CPU fan connector that detects
whether a fan is plugged in and spinning, not all fan connectors have
this ability.
Its also worth checking the fan power consumption ! The newer fans seem
to need more current. It shouldn't be an issue but I've had one
mainboard that didn't like the fan power consumption. Putting the old
fan on the CPU connector allowed that one to boot properly.
As far as cleaning the old heatsink is concerned, I find that hot water
and a good detergent, leave to soak for a while, usually does the job.
--
Best Regards:
Derrick.
Running Open SuSE 11.1 KDE 3.5.10 Desktop.
Pontefract Linux Users Group.
plug @ play-net.co.uk
