4.6 ghz on i5 6600k

[jjsemperfi]

So I'm stable at 4.6ghz on my 6600k. The only problem is I have to get close to 1.4V to get there. I'm just not understanding my voltages though. If I set my BIOS voltage to say 1.4, when I bench, it only gets up to about 1.370 or something. It never actually gets to what my BIOS is set to. But when I stop the stress test or bench, the voltage goes right up to my 1.4 V (or whatever it's set to). My voltage also does not drop down when CPU not under stress. Voltage is set to adaptive. Heat is not my issue at all. I could probably run this thing at 1.450 V without over temping. I just don't like how high my voltages are getting, and the fact that they aren't dropping at idle.

i5 6600k
Gigabyte Z170MX Gaming 5
Noctua U12S (Which is amazing by the way!! Prime 95 at 4.6 Ghz never got above 65C for 6 hours)
GTX 950
8GB DDR4 HyperX Fury
250 GB SSD
1TB HDD
EVGA 650 Super Nova G2

 

[MasterMace]

What BSOD's are you receiving?

 

[TJ Hooker]

The fact that your voltage goes down a bit under load is likely due to something called load line calibration, or Vdroop. Google for details.

Regarding staying at 1.4 V at idle, are you set to High Performance in Windows power options?

 

[jjsemperfi]

I have balanced as my windows power settings. I can't figure out how to adjust the LLC on my gigabyte bios either. It's grayed out.

 

[jjsemperfi]

What BSOD's are you receiving?

I'm not blue screening. It's running stable under Prime 95. But it's idling at about 1.4V which I don't like. Under stress it is a little below 1.4, around 1.370-1.38. Which I wouldn't mind at all...If I could get my idle voltage to drop.

 

[jjsemperfi]

Figured part of it out. So on my board I have to hit caps lock, and then type in the LLC level I want. I selected high, seems to be doing better under stress testing, not drooping as much. The voltage still remains high though, even not under load. Wish I could bring it down at idle.