I've just purchased a KD7A motherboard and an accompanying AMD Athlon 2200+ XP processor to go with it. After hooking everything up and booting the computer, it works "properly", but reads at 1337 Mhz (l33t...go figure) and gives a CMOS Checksum error. I went into the SoftMenu to tweak the CPU speed up to 2200+ (as it should be), and rebooted the PC. The screen stays black and doesn't go anywhere. I've tried a number of different speed settings within that area, all with the same results. Resetting CMOS returns it to a 1337 Mhz state. I'm hesitant to try tweaking the numbers whose meanings I don't know though. Can anyone provide guidance on what specifically to adjust and how to adjust it? Please ask for additional detail if it's needed, as this is my first time syncing a processor with a motherboard. Thanks.