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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