I have a 1.8ghz powermac non-intel. I formatted a 120GB SSD and cloned the operating system that was on my old Harddrive with copy cloner. It’s 10.5.8. The powermac does not accept the clone as a main drive. It will accept it as a secondary. Any idea why. I was told to go with a 3G SSD. The SSD is a Kingston SV300S3B7A