bigpinkdragon286 :
http://www.cpu-world.com/CPUs/Bulldozer/AMD-FX-Series%20FX-6300.html
There are at least four different low power P state voltages listed on CPU-World, along with two boosted P state voltages. 1.425V @ 4.1 GHz, 1.4125V @ 3.8 GHz, 1.225V @ 3 GHz, 1.125V @ 2.5 GHz, 1.025V @ 2 GHz, and 0.9V @ 1.4 GHz.
You may be reading the voltage when the processor is in one of it's various lower power states.
I believe the FX-6300 is supposed to run 1.35V when at 3.5 GHz, it's default non-boost, non-power saving clock rate.
Well, I went back into Bios and reset all to defaults, just to check, and then saved and rebooted. This was what it showed
For some reason whenever I was looking at it before, it was at 1.2. I guess because without a load it remains pretty static. But just now it was bumping up and down. Anyways I was seeing that as a fixed setting, rather than an active current reading.
However when I boot into Windows and check it in Asus AI Suite, it shows this. (Not sure how well you can read this as it's my first time uploading images to the forum and not sure if I've got it right)
If you can't see it, the left panel underlined is the fixed cpu voltage and Asus optimized defaults sets it to 1.1875 . I loaded a Sony Vegas render which maxed out the cpu - you might not see it's at 100% - and CPUz shows it only drawing 1.14v - that 1.14v is of course not fixed, it is actively reading, but it never goes higher, only lower. Also remember this is not an OC setting, just my default to demonstrate what it was showing up as.
So what I make of this is that Asus has chosen that as the optimized voltage, even though it could use more. Yes? So I had used 1.2 volts as my starting voltage setting for OC'ing starting with multi @ x17.5, and going up from there. So does that mean I have just undervolted my CPU? (reaching 4.0 @ 1.225v) I ran it 2.5 hrs in Prime with no errors - will go more, but wanted to get onto the right track with this first.
EDIT: Alright the pics didn't upload properly, haven't got that figured out yet.