Not bad, although not sure how this translates to a DDR3 board.

No idea, can't make my only ddr3 board (C5F) run higher than 355mhz with any cpu. Probably should repaste NB and retry.

Nice reference 

With C5F 355 seems low, maybe wrong dram settings 

I tried almost everything, bbse/hypers/psc/micron, different voltages and drive strengths. Only once, with fx8120, i did 380 boot but i remounted cooling after that so that may be the reason. Those tiny naked chipsets are so hard to cool properly so I decided to postpone fsb with c5f.