tested last night some 3d stability with the volt mod i made 930 seems to be the sweet spot for all 3marks (in xp).. i tried upping the voltage to 1.6v but adding more voltage didnt help so desided not to burn my card and just stick with these clocks, not bad for 1.5v imo aquamark was stable at 960mhz i forgot to snap a pic of that

here is the evidence of those quick 3d runs