I have a good running homebuilt AMD system using an ASUS AN8-SLI Deluxe mobo and a Socket 939 AMD 3500 cpu. The BIOS is v10.16 which supports dual core. Other than physically changing the cpu and heatsink, do I only have to clear the CMOS before installing an AMD 4800 dual core cpu? The operating system is WXP Pro,with all updates.