Update i got it running now at 4.6 ghz (HT Enabled) @ 1.34v set in Cotrol Center under load thats 1.4v, it looks stable enough although one core reached 73°c while playing battlefield 3 online.. as soon as i saw it on my g15 Keyboard (gift of god btw) i closed bf3 and was faced with a dilemma, both my cpu fans are spinning at 2500/2600 rpm, so thats maxed out... these are the online 2 options i know to lower temps. 1. lower clock to 4.5 voltage; 1.30v ? or... 2. disable HT thus lowering stress on the cores? does HT really have that much of an impact on gaming? to my knowlegde there are not many games out there who fully utilizes the 8 threads except for a few simulators... but im talking about games like rpg, fps, racing, strategie that kind of gaming... so let me know what u guys think i should do... oldpost alright i got my fresh i7 2600k @ stock with turbo enabled -> 4.0ghz, HT on, i've done the intel burn test on very high on all 8 threads. and it completed the tests successfully, i then played some games, Battlefield 3, Civilization V, Skyrim and a few others, no bsods or any other weird stuff, just smooth gameplay, now the temp on the second core recorded the highest of 64°c, and most of the time they all hoover at about 55°c both my cpu fans are @ 50 % around 1300/1400 rpm. so my question is do i got some headroom left?