I'm hitting a weird wall, I need help =(

I'm on a p5n32-E SLI, G0 Q6600. I updated to the latest 1203 BIOS, and now if I hit anything over 360FSB. Sometimes it would make it to windows, other times it wouldn't, it would just make a high pitched sustained beep.

I'm currently stable at 3.2GHZ (355MHZ), 30/29/29/29C idle temps
Mem : 2.2v
CPU VTT: 1.55v
1.2VHT : 1.40v
NB : 1.50v
SB : 1.55v

any suggestions?