Hey AgonxOC

Same situation here, guess it's the batch, almost same system as yours...i have an ANTEC TRIO 650W SLI and a 8800GTX, i tested 3,4 (425x8) ~ 1,3875
and can play games, crysis, bioshock, strangehold at 3.6 (450x) ~ 1,45 but prime95 fails 1 core...

My best stable on air is 3.5 (440x8) Prime Stable ~ 1,45

I don't think is a PSU problem

Regards
Sergio