My BIOS settings indicate my CPU Speed is 3.0GhZ but the clock speed shows 266MHz (max). What is the difference between the two and how can I make sure I have reached the maximum speed for my CPU? I have an intel Pentium 4 (Northwood) model SL6WK which has a FSB of 800MHz. Also, separate topic but related...DDR in BIOS settings shows 333MHz...I have a DDR2 PC5300 memory type.