[vcf-midatlantic] slot 2 xeons

John Heritage john.heritage at gmail.com
Thu Dec 30 18:50:22 UTC 2021

Duh. Re read what you wrote.  If you put a 133 bus CPU on a 100 bus board
it'll just run slower.   Same multiplier at lower bus speed.

The catch is there were multiple varieties of the 1.0 GHz p3 with different
voltages so just make sure you're using a .25 micron pentium 3 and the
voltages should be close enough.  .18 micron p3s (I forget if they ever
came as slot 1 but adapters exist ) or "Tualatin" p3s run at a lower
voltage and have some other minor adjustments to the socket.

On Thu, Dec 30, 2021, 1:47 PM John Heritage <john.heritage at gmail.com> wrote:

> A quick search on Vogons - pentium 3s are generally fully locked
> multipliers - can't go up or down.
> Xeons though could have their multipliers reduced.  Engineering samples of
> p3 of course can do all sorts of things.
> I'm not sure if you can put a slot 1 CPU on a slot 2 board.  Bios support
> at least would be required.
> On Tue, Dec 28, 2021, 2:05 AM skogkatt007--- via vcf-midatlantic <
> vcf-midatlantic at lists.vcfed.org> wrote:
>> Anyone know if such can run or be made to run at a speed lower then it's
>> rated? Specifically can a 1ghz 133mhz piii run in a mobo that normally
>> takes a 700mhz 100mhz piii?

More information about the vcf-midatlantic mailing list