I overclocked my ram to 1600 mhz from stock 1333, fsb is 1600mhz. Timings were 9-9-9-24-2T. it passed 16 passes memtest no problem. But Vista froze after 5 minutes. Any sugestions? RAM voltage used was 1.6 in BIOS (actual 1.66). RAM is supposed to run 1333mhz 9-9-9-24 @ 1.5v, but I've been told tehy're ok up to 1.7v.