Watch out for FPO/Batch L738B042. This stepping sucks. I got one today for test.
Vid = 1.325v
3.6Ghz (450x8) Stable @ 1.53v
475x7 also stable.
Temps are low for being at 1.53v. Around 60c load on all 4 cores.

But I´m getting a new one tonight. Same FPO/Batch + packdate. Hopefully its better. IF not, I just switch it for another one tomorrow with different FPO/Batch