So i got an old desktop that I know is running an amd athlon xp cpu. I am unsure of what it is though. I have tried programs like cpu-z but basically the programs changes it's thought based upon what the clock and fsb is. So far i've gotten cpu-z to read it as an 1700, a 2000 and a 3000. I really don't want to have to rip off the heatsink and reapply thermal. Is there a reliable software method?