The PowerMac G4 that I acquired and thought was a 733MHz quicksilver, is actually displaying under systems profiler as having a 1.2GHz CPU. I put Leopard on it and it ran absolutely fine, and then installed 10.4.11 on it just in case the leopard install caused a problem with the CPU display information. Even under Tiger though, it shows the 1.2GHz speed. So right now this is the info displayed: Machine Name: Power Mac G4 Machine Model: PowerMac 3,5 CPU Type: PowerPC G4 (3.3) Number of CPUs: 1 CPU Speed: 1.2GHz L2 Cache(per CPU): 256KB L3 Cache(per CPU): 2MB Memory: 1.12 GB Bus Speed: 133MHz Boot ROM Version: 4.2.5f1 Serial Number: (not going to post this, but I verified it and it comes up as a 733MHz QS) Thanks in advance for any help with this. Let me know if there is something else that I should post t help figure out what's going on with y machine.