VCore odd problem

[Polariz]

Right, bit of a strange one:

Im using a P4 2.8B @ 3.05GHz atm on an Abit BE7-G mobo (845PE chipset). The motherboard finds that the standard Vcore for my chip is 1.43V, whereas im pretty sure it's supposed to be 1.525V.

I however do not get the option to specifically opt for a Voltage, I only get options for: Standard Vcore, +5%, +10%, +15% etc. Setting a value of +5% gives a Vcore of 1.54-1.58 which is by my calculations (Ooer) a 10% increase. Setting the BIOS to +10% of standard Vcore, sets it at roughly 1.55V again.

I'm using the most current BIOS and this is the first time ive noticed this when trying to push my hardware a bit further. Obviously im rather worried that the BIOS is reporting it incorrectly and I may up ending over 1.7V without me knowing it (Again - ooer).

Any suggestions? How would I go about measuring the Vcore with a multimeter (IE where on the mobo do I put it?) Or anything else I can do?

Much appreciated.

[Polariz]

By the way im using an Enermax 431W PSU, which (Fingers crossed) shouldnt be causing a problem.

[batboy]

Abit typically undervolts a little. Try +15 and see what happens.

[Polariz]

Hmm, +15% tends to make the BIOS Vcore jump between 1.60V and 1.70V. 1.675/1.7V should be accurate for a 15% increase, but it's a bit strange that the 5% and 10% options give exactly the same Vcore in BIOS.