Greetings Donald, According to "Mactracker" the fastest processor that the G4 AGP platform was available from Apple was a 500Mhz dual processor. Therefor if your AGP is reporting a faster speed it has a modified PPC printed circuit board. If you look hard on the internet there are instruction regarding changing the processor speed. It has to do with changing some resistors on the processor card. There are any number of various processor up-grades available. You might want to check OWC (OtherWorldComputing) http://otherworldcomputing.com/ for all of the items that are still on the shelf for this computer. If you become interested in a upgrade let me know I have a 1.2Mh PowerLogix PowerForce 7455 that I was using in my 1999 G4 AGP, I've since moved up to a MDD 1.25Mh Dual processor. Contact me off-line harry at gifutiger.com Cheers, Harry ("`-''-/").___ ..- -''"`.. _ ( 6_ 6 ) `-. ( ``-._.-`) (_Y_.)' ._ ) `._ `.'``-..-' ` `_..`--'_..-_/ /--'_.' ,' ((((,-'' ((((,' (((.-' fl On Mar 5, 2012, at 5:40 PM, Donald Anderson wrote: > New to the list, have a question! > Hello Everyone! > I have the following machine: > Hardware Overview: > > Machine Name: Power Mac G4 (AGP graphics) > Machine Model: PowerMac3,1 > CPU Type: PowerPC G4 (11.3) > Number Of CPUs: 1 > CPU Speed: 600 MHz > L2 Cache (per CPU): 1 MB > Memory: 1 GB > Bus Speed: 100 MHz > Boot ROM Version: 4.2.8f1 > > My understanding is that the 600Mhz cpu was an upgrade done by the > previous owner. > > Im wondering how fast can I actually make this machine? What cpu > upgrades are available and worth the money for this once super > powerful computer.... > > Thanks! > > Donald M. Anderson > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4