Asus P5B (vanilla) Overview

[ziddey]

Yah, these r the newer revisions...
All these in my shop r the same.
They show vdimm up to 2.45v n have vMch adjustments..
But i dunno how good r they thou..

I made a different thread documenting my findings.

Basically, voltages above 2.1v do work, but not as you'd expect. Here's a brief summary of what I've found of my rev1.04g with extra vdimm, vmch, and other options.

2.10 and 2.15 settings both are the same, and I measured effective 2.12v. aisuite shows 2.10v, although it just shows bios setting instead of reading.

All further settings from 2.25 up to 2.40 are measured to be 2.37v. Then, the final setting of 2.45v is actually 2.55v. All settings above 2.15v result in aisuite crashing on load, because it doesn't know what the hell is going on.

Vmch, stock 1.25v actually gave me 1.30v. Then, the next option, 1.40v gave me 1.50v. Then, 1.55v gave me 1.60v. I didn't test 1.70v. That said, it seems that my p5b vanilla doesn't clock well at all, and doesn't like going much further than 450fsb stably. Extra vmch doesn't seem to help.

I didn't do vfsb measurements, but as I understand it, later bioses bring vfsb up to 1.45v, which is same as what this board offers.

i have the first version with out extra voltage adjustment, but when u load an old profile from 0806 on a 1102 bios i get some new options

also anyone know how to find out chipset/northbridge temp, i got a motherbaord temp but dunno if its the same thing

I don't believe there's a sensor integrated in the p965 chipset. So if you want a reading, get a diode to place near the core.





Also, I've looked at the p5b bios and do see options for all the voltages I have in there. I used amibcp latest version. My idea for you guys without such options is to use asusupdate to do a dump of the bios. Then use the latest amibcp to pull up the rom and see if the options are marked as hidden or not. Then again, in bioses I download straight from asus, they don't seem to be locked