Unsupported mac upgrade issue


i had mavericks running on mp ssd drive decided corrupt, i've got drive working had repartition drive, cut long story short used gf's mba restore drive via time machine, problem won't boot drive, i've created yosemite install disk via sfott won't boot either, i've got ati 5770 (non apple) can't see boot screen, in past i've chosen sfott start disk , good.

i'm starting think it's boot.efi or i'm stuck , it's driving me crazy, ideas?

thanks

paul
 

long shot have still got old spinning rust drive came machine?

if not, making bootable usb using mba?
 


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