Apple Power Mac G5 PowerPC G5 4.5GB 1.8GHz Parts as or Repair

Listing for parts or repair because it’s difficult to get it to fully boot up. Most of the time it gets stuck on the loading screen, but sometimes I could get it to boot by trying different keyboard commands during boot and then rebooting. All pictures are of the actual item. Does not include any cords or accessories. Please see pics!