i have a radeon HD 5870, 6gb ddr3 1333mhz, and a liquid cooled i7 860. id like to know what i have to do to overclock my cpu to at least 3.5 ghz up to 4.0 ghz(from what ive heard 3.5 is safe with a stock cooler and 4.0 should be fine with lquid cooling and wont use too much voltage). i would like it if i could overclock it so that my cpu wont bottleneck my gpu, however much that is. i bought my computer from alienware, so some of the properties in the BIOs are locked and i have a bad stock motherboard. if i need to change the voltage to get the oc i want, how do i check the voltage limit for my mother board? can i get a new BIOs for the alienware's intel stock motherboard? if so, where? or do i have to buy a new motherboard? thanks for yur help in advance!