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no input

  1. SHEIPI

    MP 1,1-5,1 Mac Pro 3,1 - Red light - no Bootup- No input

    I have a Mac Pro 3,1 from the range of 2009-2012, Xeon e5 542 it originally came with a GTX 680 but i replaced it with a GT 740 and worked just fine, i also replaced the hard drive with the OS because it was faulty, the computer seems to have no bios whatsoever, i had an hdd with windows 10...