it reports as Family 0x0F, Model 0x21, Stepping 0x02
In another words 00020F12h -> check the 25759 Rev. 3.73 October 2007 Revision Guide for AMD AthlonTM 64 and AMD OpteronTM Processors
This is JH-E6, so treat that as socket 939 CPU. Or any "pre_f" family. If you got no-ram! error there might be smbus multiplexers. Check orig board for details.
So forgot on fam_f and concentrate on pre fam-f if above is true ;)
Thanks Rudolf