Hey, first day on water cooling, decided to push my cpu some more, so far it seems the max my cpu will go is 249 fsb @ 1.72 volts, don't think this is stable, since in windows cpuz reports voltages at 1.76, but setting vcore to that in my bios causes it not to boot. my pc-3200 is running at 3-4-4-8, not sure if getting pc4000 will make any difference. Any ideas how I can get any higher, I've tried using voltages 1.775 or higher and I just get a black screen and have to power off my mobo to reset it. any ideas, or is this pretty much it for this chip?