Have just used the Powerleap slotket and Celeron 1.2 Ghz processor unit! Fantastic! Easy! Perfect fit! Even a dummy like me can do it! Went from PII-350 too .. zooooooma! What a pleasure! What performance! Best $149.00 I ever invested. The only thing I had to do was enter the bios settings, put processor speed to " user defined"... then change the multiplyer to 9.5 and wham!...1.2GHZ! Don't be afraid if you really want to upgrade that 1.01 Abit board this is an excellent product. the only drawback is that I could not find an email address for technical service? Maybe there is one, but I coulden't find it. I truly think it is as fast as any of the P4 or Amd's I have tried in the computer stores? I use it mostly For general net and home use with an older ATI all-in-wonder video board and CL2 memory. (No problems)! I was planning a new computer with the AMD 2100 and had decided to upgrade this for the wife? Guess what!