Originally Posted by AHW214
I'm also wondering about how to setup offset voltage. Hypothetical situation: So let's say that the CPU has a VID of 1.3 v at X GHz, but after a stable 24 hour test of prime95, I know that it can be run at 1.12 v using manual voltage. Would the correct way to use offset voltage be by setting a negative offset of .18 v and then testing the stability?
Taken from the Asus guide. I really recommend a read, it will answer a lot of your questions.
For offset - it is very simple:
First of all, you should know your MANUAL vcore:
In my case it was 1.265 for 4.5ghz.
Then you take your VID - now the VID can be found, via Core temp - a program used for monitoring temps.
You'll see VID there.
Now your VID, like your voltage fluctuates with load.
So what you want to do is hit up Prime 95, and put it under the same load that you used for stability on your manual settings.
Leave P95 running for around 5-10mins.
Then look at your VID - your VID WILL fluctuate, even on load, but take both notes down for the amount it is at.
In my case it was fluctuating between: 1.2209 & 1.2260
As 1.2209 was more frequent I took that figure.
The simple maths:
(MANUAL vcore) MINUS (VID on 100% load) = offset value
SO for me it was: 1.265-1.2209 = 0.0441
Rounded, that's 0.045 - and that was my offset.
Your offset CAN BE negative OR POSITIVE.
If you VID is larger than your vcore, thne you'll have a NEGATIVE offset: ie (-0.045)
Hope that helps!