Old posting, but I thought that I would add my experiences in here.
I have the original ABIT KT7 (Non RAID), and the last bios available which was A9.
I recently upgraded the motherboard with 1.25 GB of SDR RAM (up from the 384 MB of SDR RAM I had in there), a AMD XP 2200+ cpu and a ThermalTake Silent Volcano 9 HSF ($2.00 at a local store the other day, and I remember when these were like $30.00 a piece!).
The cpu shows up as unknown in Windows XP, but shows it is running at 2.0 GHz and I verified it using WCPUID! I have the BIOS set to disable the CPU fan warning, as something was not communicating with this Volcano HSF which caused the PC to shutdown immediately upon turning it on. The built in safety feature saw no CPU HSF so it shut down to save the CPU from being fried. Quick remedy and it is now working beautifully. I used the thermal sensor that came with the HSF and applied it on to the copper portion of the HSF near the CPU die (but not on the CPU die) and it works fabulously!
The bios setting is set at ">13 * 100 MHz" for the CPU setting. Not sure why it clocks it at 2.0GHz when the 2200+ is supposed to be at 1.8 GHz, but I am happy and the system is rock solid and very cool using a new Seasonic 350W PSU and a Antec 300 Gaming case