I don't think I got all that great of CPU. 3570K on a Fatal1ty Z77 Professional at 4.5 ghz. I need an offset of +0.05v, LLC level 3, pll overvoltage disabled, CPU PLL auto, C3/C6 disabled. It runs at about 1.28V under load with max of 83 C on one of the cores, the rest at about 77C max. I tried lowering the CPU PLL but that was completely unstable when lowering it in the 1.7-1.8 range. However, it might be working fine at the lowest setting of 1.586V, weird (still need a lengthy stability test - right now testing LLC level 2 and 1.586V PLL). The 1.586V PLL is slightly cooler and if LLC level 3 works, it should drop even more.
I have been trying 4.6 ghz without much luck - I think I need to set the voltage for the core to get it stable instead of using an offset. It seems to be working at 1.36V core, LLC level 1, and 1.586V CPU PLL, but my temps are all going above 80C for every core and a max of 88 C for one of them. I guess to run at 4.6 Ghz, I may need a second radiator. I only have a single EX360 radiator running both my CPU and my graphics card, a 7970 which stays under 45 C on load.
Is it fine to keep Turbo voltage on auto or should I be tweaking that too?
PS Cirdan - I did that same identical upgrade, hah. An MSI motherboard and I7-860 to a 3570 and Professional motherboard. Did you get that combo at Microcenter like I did? Also, I upgraded from a 60gb SSD to a 240GB SSD