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E8400 down volting it self?

post #1 of 5
Thread Starter 
I am trying to get my CPU to 4.0ghz+ stable. I have not been able to past 3.8ghz. Every time I try to push it past that my voltage drops to 1.22v. I got intel burn to run 7 cycles at standard stress level at 4.2ghz, after it crashed I looked at my bios and my voltage was at 1.22. Intel says 1.45v is the limit, I have been watching CPU-z and it has not gone above 1.37.

My curent overclock 3.8ghz FSB 1690 voltage at 1.32. Should I have to make such a big leap from 1.32v to 1.37+ to get a .2 ghz increase?
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post #2 of 5
you might have too and it could be V droop that is the cause.
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post #3 of 5
Thread Starter 
Quote:
Originally Posted by qbical View Post

you might have too and it could be V droop that is the cause.

I have been keeping a eye on my vid and it all ways stays at 1.2500v
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post #4 of 5
See if thermal throttling is enabled in BIOS. What are your BIOS settings? C0 aren't as capable as E0.
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post #5 of 5
It has been a while since I've played with the 680i bios. But I do have a thread on the eVGA 680i that will give you some great info (its just been too long to remember it all...):
http://www.overclock.net/intel-motherboards/229532-essentials-overclocking-680i-nvidia-reference-boards.html

Here is what to disable in bios (see the Sub menu in particualr for C1E)
Quote:
Originally Posted by ericeod View Post

There have been a lot of OCN members asking what to disable in the bios. So here are what I have disabled in Bios:

The below list is from the P31 bios

Standard CMOS Features

Drive A: None (If you dont have a floppy)

Advanced Bios Features

Full Screen Logo Show: Disabled

Advanced Chipset Features

sub menu System Clocks

CPU Spread Spectrum: Disabled

sub menu CPU Configuraion

CPU Thermal Control: Disable

C1E Enhanced Halt State: Disabled

Integrated Peripherals

On Board FDC Controller: Disabled (if you dont have a floppy)

Onboard Serial Port 1: Disabled

Edited by ericeod - 12/6/11 at 9:46pm
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