Finally got 4.0Ghz stable..temps never went above 80c on any of the cores. 20x200, HT Enabled.
4.2Ghz still working on this (fine tuning the voltages)..determined to get it stable with HT enabled...21x200
For 24/7 use i stick to my 3.6 profile, it runs flawless 100% stable at very low temps on my TRUE 120 and for everyday use and gaming i do not see any difference between this and the 4.0Ghz profile.
For me the 4.0 and 4.2 profiles are primarily for Benchmarking purposes.