I decided to try to salvage these two old computers from the e-waste pile at my work in hopes of upgrading one with parts from the other. The older one of the two is a Power Mac G4 M8493 and the newer one is a Power Mac G4 M8570. I've already realized that the RAM isn't interchangeable between the two, but are there any other parts I could take from one to upgrade the other one? I'm not computer-savvy, so any help at all would be greatly appreciated!