[Budd]

One of the system requirements Apple lists for OS X 10.5 is a PowerPC G4 with at least 867MHz. I have a Quicksilver that was originally a 733MHz machine. I have upgraded it with a 1.4GHz processor. Will Leopard run on an upgraded system that did not originally meet the current spec?
Thanks.

[bastion]

Apple has never supported 3rd-party CPU upgrades. From what I've seen it looks like Leopard will almost certainly work on your machine but the Leopard installer won't. You'd have to install from a different machine either in target disk mode or on a drive to be transplanted.

[Budd]

Thanks, bastion. Using target disk mode to do the install is the easy part, but how would I then transfer my current users with all their current settings? Thanks.

[Arne]

I would imagine that you can boot another Mac off the HD which is in target disk mode. This way the installer would check the system the computer you are on but install it over the user you have booted from, which is the one in target disk mode.
However, I am not sure if that works when the other computer is an Intel. Could be that different things are installed on a PowerPC and Intel.
Cheers,
arne