Before attempting to use a Leopard ISO, it is vital to ensure the target hardware is compatible.
Once you've obtained the ISO image, follow these steps to install it: mac os x leopard iso
To run Mac OS X Leopard from an ISO or original DVD, your hardware must meet these minimum standards: Before attempting to use a Leopard ISO, it
Intel, PowerPC G5, or PowerPC G4 (867 MHz or faster). mac os x leopard iso