major pita w/LSI Tyan TA26 combo
V. T. Mueller
freebsd-amd64 at datafarm.de
Sat Mar 11 13:50:03 GMT 2006
Ken Gunderson schrieb:
> On Mon, 06 Mar 2006 17:34:24 +0100
> "V. T. Mueller" <freebsd-amd64 at datafarm.de> wrote:
>>We used to have problems with adapters running at 66MHz or more
>>using risercards in a number of Tyan S2707. Those risercards came
>>from Chenbro, along with the cases. By replacing them with Tyan
>>risercards (which became available a few months *after* the boards)
>>those problems vanished.
>>And now comes the interesting part: Months later, problems began to
>>reoccur. In the end we found out that the power supplies were of
>>somewhat low quality. Replacing the power supply helped in every
>>system that was affected.
> Could you please provide more details about the low quality units, e.g.
> make and model?
Sorry for the delay. Here is the data of one of those PSUs:
EMACS/zippy Model: P2U-6300P (V)
Ser. No.: T33406403
We had a bunch of them replaced with newer versions. I can't tell
you from which serial number onwards the problems went away but I
was told that all models with "black labelled fan" cause problems
and all with "blue labelled fan" work flawlessly. So the latter
might be somewhat revision 2 ...
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