Hi guys, I am running into an annoying issue with my Q9650 system. I can get the system stable at say, 4.1Ghz. By stable I mean it can pass 20 minutes worth of Linpack stress with all but 200MB of RAM utilized and then a couple of hours of Prime95 with massive RAM utilization. It can pass any number of MemTest rounds you can throw at it, as well. The problem is that Mass Effect 2 just keeps CTDing on me. Since on lower clocks/stock it doesn't happen, the issue has something to do with the OC. I am currently running 1.24vcore (But I've tried up to 1.3v and I get the same effect), 1.25 vtt, 2.2v on the DDR2 (Damned A-DATA RAM). The NB is getting 1.28v (And I've tried 1.3v as well), currently. Current FSB is 450, running a x9 multiplier for 4050Mhz. RAM is set at a rather horrible 5-6-6-21-2T at 900Mhz. What am I doing wrong ? I have the nagging suspicion that the issue is caused by the FSB failing under serious load (For example when there are plenty of memory accesses and also CPU-GPU communications going on, and it glitches), hence the failure in a game, but not in synthetics (3DMark has no issues also, but it doesn't eat up as nearly as much memory as a game). I'm gonna go and get a new set of RAM later today, because I am sick of those A-DATA sticks, and hope a good 1066Mhz set will help - If not, what should I do ? Crank up the NB voltage to 1.35v ? Throw in more VTT ? Is my chip at its FSB limit (Which would suck) ? Is the board running out of breath (I hope not, just bought it to improve my OCin' on this Q9650) ?