BH are the best And Single Stage wont be the best cooling for an FX You will need better cooling like casade or LN2.

Yesterday my FX-53 and the 5 Opteron 150 arrived. The Opterons all have 0532 MPMW Stepping, same wafer-id only the batch is various.

The Opteron 150 wr is hard to bet ---> bruce and I will fight back