Quote Originally Posted by LeetMiniWheat View Post
my i5 2500K is topping out at 4.9GHz on my UD4 with 1.476V shown in CPU-Z. gone up to 1.516v and I can't seem to get the extra 100MHz out of it. tried 102x49 and 101x49 (4.95GHz). 102 BSOD's weird 03B and 0A's, and 101 seems to 124. Ideally I'd like 100x50 though. f7b and f7h are same results.

Vcore: Normal (1.380V) +0.135v offset w/ LLC
QPI/VTT: 1.140
VCSA: 0.920
CPU PLL: 1.7200

I'm starting to wonder if the Asus or MSI would get me that extra 100MHz easier and with less Vcore.
Lower temps likely all you need.

I tested my chip on high end water versus air, i can prime at 5 gig on the high end water with 1.5v.......doubt chip would last long like that 24/7 though.

Really 4.5-4.7 with 1.3v-1.35 is the sweet spot safety wise it seems, if you chip can do more at that voltage even better.