I just purchased the Venomous X heat sink for my rig...and was trying to overclock the i7 950. I followed the tutorial posted on Tom's....I changed the multiplier to 20 and set memory to lowest setting 2:6. Started increasing CPU freq and restarting like it said...I got to where it blue screened...blah blah...my settings that were stable (at least let me into windows no problem) was 190 x 20=3.8ghz and vcore was at 1.16875 volts. I then tried to change the memory back to 2:8 and voltage to 1.65 volts (like the tutorial said) and I keep getting blue screen or nothing will load up. My digital message board on the motherboard has error code A1. So i then have to restart cmos and start over again. I never messed with the qpi or anything because i was just trying to be stable at around 3.8 to make sure my temps are nice and cool. I thought increasing qpi just let you get a higher overclock which I don't want...is that correct? I don't really have the need to go to 4.0 and above...Am I doing something wrong?? or how else do I get my memory back up to around 1600?? any help would be great...I've never overclocked before and have no clue what I'm really doing...also...I've read a bunch of stuff on people arguing about ram voltages at 1.65 and if it would void warranty and if its safe...so is it safe?? the argument seems to go both ways....thanks in advance for any advice you can give me...