So I had a question pertaining to MSR Lock Control.
Obviously I am running a Hackintosh setup and OS X needs to be able to write to the MSR.
 
So am I correct in assuming that MSR lock control needs to be disabled in that scenario?

Sajin
Yes from my understanding.

Ok that made sense to me now that I thought about it. I was getting random lockups in OS X and had it enabled.
Set it to disabled and so far all has been good.

lmatyja
About this and Cach4 voltage.
 
MSR Is for OS ?
 
And cache voltage the change to 1.25? safe
and why  in series 10xxx is 1.3V to start and bios ignor voltage stup ?

Yes, MSR is for OS, in the case of Hackintosh and perhaps *some* (definitely not all) non-WIndows operating systems.
 
Windows 10? No need to worry about MSR Lock option.
 
Cache voltage of 1.25V seems safe to me. Safe depends on your own tolerance for risk. In my book, it only gets 'risky' when you're regularly in the 90 degrees C+ range and/or with voltages exceeding 1.45V. Cache can be a bit different though so wait for other replies from more experienced as so far I haven't much bothered OCing my cache/mesh.
 
From what I read, you may be lucky and get 33x cache ratio stable with 1.15-1.20V.