That motherboard is AM2 designed to work with the dual core Athlon 64 (K8). The AM2+ motherboards on the other hand have a separate power plane for the cpu north bridge - which runs at it's own speed along with L3.
I have an Asus M3a which is AM+,but is nothing to right home about.
I think JUSTAPOST has/had the M2A,maybe he can share his wisdom

http://www.xtremesystems.org/forums/member.php?u=58928