Ok, I bought an AMD Athlon XP 3000+ off of the internet, it came in the mail today. I put it in my computer (the mother board is an ASUS A7N8X2.0). The computer recognizes that I put in a new processor. I ran a DirectX Diagnostic and it said my CPU speed was 1000Mhz. The processor I had upgraded from, AMD Athlon XP 2500+, came up as 1100Mhz. The CPU I bought was tested and guaranteed to work. Why is my motherboard not recognizing my CPU? And what can I do to fix this.