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SubjectRe: P2 & P3 dual-CPU?
> Intel has very cleverly discontinued the PII/450, leaving me with the
> following options:

0) get a PII/450 somewhere, maybe swapping it against a PIII/450

> 1) installing a PII/400. I assume that the 4x frequency multiple is
> hard-coded onto the processor cartridge somehow. Has anyone tried
> running two CPUs at two different speeds in the same box
> simultaneously?

This might work, but I am not too sure it would.

> 2) installing a PIII/450. I doubt there is any electrical compatibility
> problem, but I wonder if there is some trick to getting Linux to
> treat the PIII as a PII (i.e. it would be really bad if the kernel
> tried to enable MMX on both CPUs). Has anyone tried running two

As long as you don't try to use KNI, there should not be a software
problem with this. The differences between later PIIs and PIIIs are minimal
anyway so it should work.

I'm not sure what you want to say about MMX.

Philipp Rumpf

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