Vdroop/Vdrop mod for Asus P5E works great.

First:

BIOS = 1.537 V
IDLE = 1.472 V
LOAD = 1.432 V

After:

BIOS = 1.537 V
IDLE = 1.520 V
LOAD = 1.528 V

I'm happy, no I can run my Q6600 on 4Ghz with only 1.42V under load.
But still my question, how can I reach 475Mhz on this board ?