Quote Originally Posted by Ace-a-Rue View Post
ICH is the core voltage to the SB.

ICHIO is I/O voltage of the SB.

MCH and ICHIO are the two most important voltages along with Vcore and Vdimm to overclock...CPU VTT is a secondary adjustment
So why don't I need any ICHIO? Even 500x8 I didn't need any although that was only 32M tested. Needed more cpu vvt though. Maybe it's a quad thing???