Help with overclocking i7 2600k

Matthew Snowden

Honorable
Sep 10, 2013
6
0
10,510
i currently have my 2600k at 4.5ghz running at 1.375v and my rig is watercooled with a 420 rad and 240 rad and temps are around 56-61c on all cores (which seems high to me). My question is when i run Prime95 i see a vcore of 1.256v caused by vdroop but what i don't understand is why its so low. Is there any way for me to get better temps/lower vcore from 1.375v since that seems high to me and i've read posts of people getting 4.8ghz on 1.35v. The 1.256v seems extremely low to me for 4.5ghz since i have to run it at 1.375v to get it to be stable in prime95. What can i do?

2600k CPU and asus sabertooth p67 mobo just for reference.