wotever u do dont put your xp 3200 upto 3200ghz!!!! u gonna be able to have a barbeque inside your pc!!!!
i dont know what the actual speed of that cpu is but my xp3000 runs at around 2.2 gig and that is the correct speed it should be at. Also dont try and overclock these high end cpus unless you really know what you are doing and have some awesome cooling on the cpu and case (watercooling system recomended)
anyway hope this helps, wouldnt want you to blow your nice new chip.
oh and sunny, what is your fsb on?? if your using ddr2100 on an xp3200 then you have the wrong ram as it will only operate at fsb 266mhz, also ddr 2700 operates at 333mhz. i think (but not sure) that all xp3200's only work at fsb 400mhz for which u will need pc3200 ddr ram. so check what you have in your pc m8. the wrong ram can cause blue screens, as can poor cooling - which could be your problem as indicated by the fact that if you lower your clock speed of the cpu (producing less heat) you have no problems. are you using an amd approved cooler and got plenty of case ventilation??
hope i can be of help anyway