My AM2 3000+ on a Foxconn Nforce 590 SLI board with G.Skill 6400-PHU2 2x1GB memory:
9x300 (2.7), HTT Multiplier 4X. CPU voltage set to 1.425 (CPU-Z reports 1.30?)
Memory at 2.2V, running CPU/6 (ddr 667), at 900mhz, 4-4-4-12, 2T
All I had to do to get it stable was change the HTT...