Event times are wrong with me set volt processor to 1.55 V for i7 3770k the PCH Z77
Temperature became 67 C and usb not work at this time .
But before that the temp of z77 31 C now
After wrong correction the temp is 37 C and usb is work
@ 4.0 Ghz Vcore=1.055 Volt with 58 C at Full load 4 hr. with crosair H80 .
and when set i7 3770k to 4.7 ghz with auto volt the computer not work need clear cmos