I have a ASUS A8N-LA mother board, compaq name Nagami2L-GL8E. It has right now a AMD Sepron processor. I bought a Athlon 64 x2 4800+ CPU to upgrade. Both are socket 939 but the new processor has an extra pin on the corner across from the alignment arrow. It will not fit in the socket with that extra pin. According to all my research it should be compatible. Does anybody know if this is a defect in the CPU or is it not compatible? I would appreciate an help I can get.