Hello! I have a Asus A8R-MX motherboard with socket 939. The only dual-core CPU i have found in my country for this socket is the "OPTERON 2.6 185 Denmark". The opterons aren't listed in the SUPPORTED CPU's list in the manual provided with this motherboard, because the motherboard is manufactured in 2004, the Opteron 185 in may 2006. Could this CPU work with my motherboard? Thank You!