Hey Guys.
I want to reach 4.5 Ghz 24/7 with my i7 930
I'll have 1 HD 5850 overclock to the max
I'll use a BCLK of 215 Mhz with multiplier 21x

I want to know how much voltage should I put in the IOH and ICH, I heard that auto was a bad option

so
IOH Core: 1.31v
IOH PCIE: 1.61v

ICH Core :1.19v (auto is at 1.13v)
ICH PCIE : (auto) I dont have any PCIE x4 cards

Will that be okay?
Thanks