I've been reading through this thread with interest. I think I may have accidentally unlocked my xp 3200!
I was refitting the heatsink when I dropped it onto the cpu, from a height of about 1 inch. After that the cpu would only run stable at 100 fsb and was recognised in BIOS and Sandra as an Athlon 1200. This was on a Gigabyte 7VT600P-RZ board, which only has a manual setting for 100 fsb, anything higher being auto detected. Am I right in thinking the multiplier should be 11x , not 12x ?
Anyway, I moved it to an ASRock K7S41 board, set the jumpers to 200 fsb, still no joy. But if I clock back to 180 in the bios it is recgnised as an xp 3000 and works fine. I can push it up to about 195 (about 2350 MHz) with no problem.
Am I mising something here or have I found a novel way of changing multipliers?