What is possible to do with a P2B rev. 1.12?

  • Thread starter Thread starter Ørjan Langbakk
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Ørjan Langbakk

I might be buying this one, but I'd like to know what I can put in in
regard to the CPU speed etc.

Anyone?
 
Ørjan Langbakk said:
I might be buying this one, but I'd like to know what I can put in in
regard to the CPU speed etc.
Click to expand...

It will take a 1GHz P3 (either directly as a Slot 1 or a S370 via an
adaptor) without any problems. I personally would avoid 133MHz FSB
CPUs, the board isn't really designed to run at that speed (but I know
there are people who have overclocked it OK).
 
Ørjan Langbakk said:
I might be buying this one, but I'd like to know what I can put in in
regard to the CPU speed etc.

Anyone?
Click to expand...

I have three P2B-S rev 1.04 systems running 1A Tualatin Celerons @
1.5Ghz (150mhz FSB) on Slot-T adapters, very stable. They'll also run
P3-S 1.4s @ 1575Mhz - and the extra processor cache on the P3s gives a
huge performance boost (but not worth the outrageous price).

P2B rev 1.12 has the same voltage regulator and clock chip as my P2B-S
boards, so should be just as capable :-) If not, at worst it will be
stable at 133Mhz FSB - I've never met a P2B series board that wasn't.

Memory tends to be an issue for P2B boards at 150Mhz FSB, but
Crucial/Micron 256MB PC133 CAS2 DIMMs will usually do CAS3 @ 150Mhz. You
need Corsair PC150 to get CAS2 @ 150Mhz.
 
P2B rev 1.12 has the same voltage regulator and clock chip as my P2B-S
boards, so should be just as capable :-) If not, at worst it will be
stable at 133Mhz FSB - I've never met a P2B series board that wasn't.
Click to expand...

It is worth mentioning that the BX chipset of the board sets a limited
range of agp-dividers. The board P2B retains divider 2/3 for agp all
the way up from fsb100.

So at fsb133 the agp is overclocked 33 % and at fsb150 50%. With most
gamer graphics 33 % can be accepted, but 50% demands more carefull
selection of a suited card.

It is indeed best with some fast running ram !

best regards

John
 
JK said:
It is worth mentioning that the BX chipset of the board sets a limited
range of agp-dividers. The board P2B retains divider 2/3 for agp all
the way up from fsb100.
Click to expand...

Thanks. That was a serious omission on my part.
So at fsb133 the agp is overclocked 33 % and at fsb150 50%. With most
gamer graphics 33 % can be accepted, but 50% demands more carefull
selection of a suited card.
Click to expand...

Indeed - it's unusual to find a card that misbehaves at 89Mhz, but
100Mhz is a much greater challenge. All my 150Mhz FSB systems are
running Asus cards with nVidea chipsets - ranging from TNT to GF4 - with
no issues.
It is indeed best with some fast running ram !
Click to expand...

Agreed - ram is the bottleneck on P2B/Tualatin systems, so maximising
FSB and memory timings should be the goal.
 
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