The lot number should be printed right on the processor. Did you check
the smp motherboard list http://www.nlug.org/smp? If your motherboard
is listed, you can see if anyone else has had smp problems, too. Good
luck,
Hidong
John Weber wrote:
>
> I bought two new 750's from Dell with the expressed intent of upgrading
> this machine to dual CPU's. I've assumed that Dell knows what they're
> doing (naive), but I can double check with them. The system boots and
> runs fine, only one processor.
>
> The motherboard apparently has no jumpers to set, just a place-holder card
> in the slot for the second processor.
>
> I also suspect it's a hardware problem. Next week, I might be able to free
> up a dual 550 box that SMP works on and swap the 550's for the 750's and
> see what breaks.
>
> Thanks, John
>
> On Fri, 16 Mar 2001, John Aldrich wrote:
>
> > On Fri, 16 Mar 2001, you wrote:
> > > Did the original post say that this machine had one cpu, and now it's
> > > being upgraded to two cpus? I've found that for smp to work, both
> > > processors have to have the same lot number. I recently upgraded a dual
> > > pii300 to dual pii600. I wanted to make sure that my motherboard was ok
> > > with the coppermine pii600. So I first bought one pii600. That worked
> > > fine with a up kernel. Then I bought a second one, and the two cpus did
> > > not work with an smp kernel. Actually, Linux wouldn't even boot. After
> > > I exchanged one of the cpus to get a matching lot number pair,
> > > everything worked under smp. Good luck,
> > >
> > Hmm...good point. I forgot about that...
> > John
> >
> >
> >
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