Ive got my mem at 233 at 7,3,3,2.5 timings and i ran memtest and after 10 passes i got no errors, is this stable? also ive got my cpu a64 running at 280x10 with a 166 divider (233mem) is there tighter timings i should try? say like 6,3,3,2.5 or any other combnation? just wanna get the best out of it! 
