From: Gregor Jeromen (gregor.jeromen@epilog.net)
Date: Thu Feb 10 2005 - 14:04:55 EST
> Hi!
>
> We have an old E4000 system with 8 CPU, 4GB RAM, 1x IO board, 4 PCM
> modules and a PPS.
> Some time ago the system started to report a failed PPS (see prtdiag
> snips below) and the fans in PCMs don't turn any more.
> We've obtained a spare PPS and replaced it. The system booted, the fans
> didn't start and after a few minutes a bang! indicated a blown resistor
> on PPS (ceramic high power at the entrance of 220V).
>
> The machine now limps along in a well cooled room with a fan fitted
> externally.
>
> Can anybody point me into the right direction on both problems (fans and
> PPS failure) which I think are connected?
I forgot to add also a question that is bothering me - who provides 12V
in the system and how different fans (AC box, PCM, ...) are powered?
Thank you again.
Best regards,
Gregor
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