I do not like setting my vCore manually.
I also found that my MB (Gigabyte UD3) set the vCore rather high. So I used the offset of -0.50v to get my vCore down to the 1.23v range at full load @ 4Ghz.
Also, anything under 1.3v is perfectly safe for these CPUs. If you can get 4.2Ghz under 1.25v, then you are in very good shape.
Core i5 6600K @ 4.3ghz - 1.260v
G.Skill Ripjaws V 16GB @ 3000mhz 15-15-15-35 (DDR4)
Gigabyte GTX 970OC @ 1400mhz
Samsung 950 Pro NVMe 256GB
Last edited by Edrick; 03-29-2012 at 11:13 AM.