warning: recent PIII's not SMP-able

[Mark Hahn]

Intel's latest spec update says that there's a whole core revision
of the PIII that doesn't support dual-processing. these are all
fc-pga chips, btw. perhaps this is just another (remember Celeron?)
asinine marketing trick to to position the non-Xeon version
to compete with AMD.

the worst part is that both versions have the same CPUID.

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[Mark Hahn]

> http://developer.intel.com/design/pentiumiii/specupdt/244453.htm

Intel seems to have revised this; note 12 ("cannot dual") now
applies to only a few chips.

[Josip Loncaric]

Mark Hahn wrote:
>
> > http://developer.intel.com/design/pentiumiii/specupdt/244453.htm
>
> Intel seems to have revised this; note 12 ("cannot dual") now
> applies to only a few chips.

Judging by Intel's September 2000 specification update, the "cannot
dual" note now applies only to certain 1.0 GHz Pentium III chips in
SECC2 packaging. However, note 9 ("will not be validated in Dual
Processor applications") applies to lots of different P3 varieties, all
of which have core stepping cA2 and come in FC-PGA packaging.

Sincerely,
Josip

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