if i'm not mistaken, IOH is actually refers to your NB voltage..and ICH is SB voltage..

you need to increase your IOHv since your baseclock increases..NB is the part where the bclk linkage with with the memory clock(ram)..due to increase in bclk will increase the memory clocks, we need also to increase the IOHv..say 1.3-1.35v...this is where i put mine at 4.00

ekekeke.. first you have to know that like CPU clock speed, dram speed, and QPI frequency, uncore is a multiple of the base clk. Uncore can be set independently of those other frequencies, subject to certain stability limitations...

usually, the uncore freq must be at least 2:1 of the DRAM speed otherwise you will not get a stable overclock, in fact your PC will not even boot if the ratio is not suitable...

Increasing the uncore:dram ratio above 2:1 yields significant performance gains. try not to get the uncore freq subject to 3:1, you will not a stable oc..

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Added on June 24, 2010, 12:50 amone more thing, try to update to bios bro..they correct some kind of stability issues already..i have updated mine 0602, so far, np..

This post has been edited by kaka_89: Jun 24 2010, 12:50 AM