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  1. bob stocking

    No display, keyboard non responsive (USB) but mouse has red light showing (USB)

    Replaced power supply in Mac 4,1 (5,1) Replaced rear logic board Swapped out keyboard from another 5,1 Swapped out GPU with working Mac Swapped out Mac display with HDMI display Replaced battery (3volts) Replaced CPU tray from 2 cpu's to one. I'm out of ideas. Any help would be appreciated.
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