I havent tried 803 bios, a bit lazy lately with overclocking and such, but I did tinker around this morning trying to get 340+ FSB

But I did manage to get my overclock 100% stable with tighter mem timings and 1T
http://valid.x86-secret.com/show_oc.php?id=231235

My board seems to wall at 340FSB, even with 1.61v vcore and 2.3 vdimm, relaxed timings, 2T and x9 as well as x8 divider :/