Question Can't boot into macOS

Muhamad-j1234

Reputable
Dec 31, 2020
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Hi all,
I have a PowerMac G5, and the HDD has a copy of macos leopard installed. However, it doesn't detect it and I just see the blink question mark. It was working fine, but after I reset it it doesn't detect. I know the hard drive is working as I've tested it in other mac's Also, it won't boot from a Leopard and Tiger bootable USB.
Thanks
 
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