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Message: <blockquote data-quote="jasongoldworthy" data-source="post: 1902243" data-attributes="member: 395464">hi guys as the title says I have another 27" late 2013 imacthat was given to me with a dead hard drive ive pulled the drive.and its not always chiming and the display don't light up.ive looked at the diagnostic led's and only 2 come on the bottom one to show there is 5v power and the 2nd to show its on.it will sometimes chime but if I try to boot an installer of any sort it freezes on a black screen.but if I leave the boot media out I get a flashing question mark folder.any ideas if this could be a firmware issue ??ive tried doing internet recovery and AHT but it won't run any of them.thanks</blockquote>