Asus P7P55D Series Discussion

[grenadier]

not needed to go up to 1.5v this was my 4.2Ghz on i5-750 bios settings are at bottom of post. Increasing PLL a notch may help, also CPU Amplitude & Skew.
1.375v Vcore
IMC Voltage 1.3000v
CPU PLL Voltage 1.90v

My CPU PLL voltage is already 1.9V. I shouldn't need more than 1.25V IMC voltage tops since I'm running my memory at 1600 using stock timings and 1.5V. Does anyone think in this situation that the memory controller really needs any extra voltage?

I changed my cpu amplitude / skew settings to match yours to see what would happen and it hasn't allowed me to get 4.2GHz stable at lower cpu voltages. Right now everything is prime95 stable at 4GHz / 1.45V / 21x191 / 1600. Increase the multi to 21 though and the voltage needs to be upped all the way to 1.5V to get any kind of stability (p95 stable for 1 hour before 1 core halted). Definitely going to stick to 4GHz unless anyone has any more tips...

Thanks for the reply!

EDIT: Dropping my IMC voltage to 1.2V has shaved 10C off my temps (89C to 79C) and doesn't impair stability at all. I think most folks simply don't need to pump this higher than 1.2V, which is what the xbitlabs article on the p7p55d deluxe article recommends.