Let's see, I have a Quicksilver 867. I upgraded to a Mercury 1.2ghz I upgraded to LEopard. Slapped in a dual 1ghz card. Ran great till a couple of weeks ago. When I opened it up there was arcing under the CPU card. For some reason there is a loose standoff, and that was arcing so much that the screw is burned and the standoff pitted. Being as I just recovered from my G5 committing suicide, I am not ready to take it apart down to bare box to screw a screw, when the whole thing might be shorted out. So I bought a MDD Dual 1ghz and intend to swap out all my stuff. I do this because I run ProTools with Digi 001 which was killed, support-wise by M-Audio. Also have to keep a Panther system drive to use it. But it records much better than Garageband. so... What is supposed to happen if you switch CPU's ? 'Cause that was never a problem before. Jim On Dec 5, 2011, at 7:38 PM, Rich Northouse wrote: > Hi Guys, > > When you do an upgrade, usually it is a software upgrade to the operating system (OS). There usually, however then can be, NO upgrade to the CPU. > > Rich > > > On Dec 5, 2011, at 6:22 PM, Tina K. wrote: > >> On 2011/12/05 16:11, KReitz so eloquently wrote: >>> I wonder if others here have experienced this kind of problems from their G4 >>> upgrades and those running Leopard. Perhaps it's best to stay with Tiger so I >>> am researching options >> >> I don't have any experience with the CPU upgrade but I did have problems with >> Leopard when I upgraded from Tiger. Going back and doing an archive & install >> instead of an upgrade solved my Leopard problems. >> >> Good luck, >> >> >> Tina >> >> -- >> >> Acceleron: HP Presario 2.8GHz Celeron D 2GB RAM Discrete graphics XP Pro >> Luxo Jr: iMac 20" USB 2 1.25GHz G4 2GB RAM GeForceFX5200 Ultra 64MB VRAM 10.4.11 >> Worm: PowerBook G4 15" HR-DLSD 1.67GHz G4 2GB RAM Radeon 9700 128MB VRAM 10.5.8 >> Quadrophenia: Mac Pro Mid-2010 2.8 GHz QC 6 GB RAM Radeon HD 5770 1GB VRAM 10.6.8 >> _______________________________________________ >> G4 mailing list >> G4 at listserver.themacintoshguy.com >> http://listserver.themacintoshguy.com/mailman/listinfo/g4 > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4