Stability of network cards at 75MHz+
Robert G. Brown
rgb at phy.duke.edu
Mon May 15 20:16:33 PDT 2000
On Tue, 16 May 2000, Chris Empson wrote:
> > I am going to be involved in purchasing some additional nodes for our
> > Beowulf, and was wondering if people had any wisdom about the stability of
> > network cards running at non-standard FSB (and PCI) speeds. The ability to
> > overclock the Celeron is well documented, but I haven't seen much on how the
> > PCI cards are affected.
> > The hardware is going to be the Abit BP6 boards, and the 3c905B NICs. No
> > hard drives, which I hear are the biggest problems...
> I have been running my Abit BP6 mobo @ 75MHz FSB since January with no
> ill affects to the stability of any component, including my el cheapo PCI
> NE2000 clone network card.
> The machine is very stable, but does get a little bit on the warm side
> now and again!
A further warning to add to Doug's: If you have any interest in running
the BP6 nodes with UDMA enabled, you CANNOT overclock. I believe that
Mark Hahn noted that in a comment just yesterday or the day before. You
will completely screw up critical timing if you do.
I personally run my BP6's at their nice, pedestrian spec speed and they
are very nice and reliable.
> Chris Empson
> Second Year MChem Chemistry
> University of Hull
> Beowulf mailing list
> Beowulf at beowulf.org
Robert G. Brown http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567 Fax: 919-660-2525 email:rgb at phy.duke.edu
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