I'm haven't used IBT in over a year and can't remember much about it except I felt I didn't need IBT to do my oc.
So about the IBT I can't help you.
And the reason you feel like the vcore is only slightly higher on high load when on lower LLC is cause is cause the spike in vcore is now very low when on high load cause of the low LLC. But when using offset you'll get a spike aswell. Which you might think is the LLC at work.
Example (from my computer):
LLC @ High > Vcore offset @ +0.010 > VID @ 1.398v < This is at load >
When using prime I can get over 1.400v easy, but when on medium load I get 1.368v.
Now if I raise my LLC to Ultra High, you'll see the vcore go 1.416v easy with prime, but when at medium load you'd still only see 1.368v.
But if I put offset to +0.015 and let LLC @ High you wont see much if any increase in prime load vcore, but you'll see an increaes in medium load vcore. Like 1.376.
I read some other dude on these forums had the same problems as I had earlier.
Prime stable for 24+ hours but folding crash after 30+ min.
So from what he learned I now know that when I'm prime stable I still need 1 more noch up the offset ladder
to make folding stable. Ofc that can depend on machine to machine and I haven't really folded much lately but atleest I can fold for hours now
My point with this is that even thought folding uses 100% of my cpu. I'm no where near the vcore I'm at with prime.
So IBT and Prime not using the same amount of vcore don't surprise me.Edited by Kman3107 - 4/4/13 at 3:08pm