So I was able to overclock my cpu using a 43 multiplier and a negative offset (-0.060v) on my asrock z77 extreme4 with a level 2 llc (second highest). My voltage as shown on cpu-z reached a minimum of 0.792 on idle and a maximum of 1.200 when stressed completely using prime95. Temperatures ranges between 20c~35c (only 1 or 2 cores go above 30's) on idle and 50c~72c when stressed (all cores). During gaming (BF3 ultra settings, for 1~ 2 hours), it was in the med-high 60's (all cores). The stress test done was only for like 30~40 minutes and the idle test was for like 10 minutes. I KNOW that this is not enough at all but I am planning to do the real tests soon. Until now, I haven't get any BSOD during boot due to the low voltage and the stressing temperatures are acceptable considering that I am using a CM hyper 212 evo. What do you think ?