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Apple Computing Products:
macOS - Desktop Hardware
Late 2009 iMac. Screen flickering, then blacking out.
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<blockquote data-quote="Lifeisabeach" data-source="post: 1593746" data-attributes="member: 38864"><p>If you are really lucky, this may prove to be something as simple as a loose cable connecting the display to the GPU, or maybe a faulty cable. You can look over iFixit's repair guides to see if it's something you want to tackle yourself. Opening up these iMacs is not for the faint of heart though... it is very easy to damage a cable if you aren't extremely careful (I damaged one myself).</p></blockquote><p></p>
[QUOTE="Lifeisabeach, post: 1593746, member: 38864"] If you are really lucky, this may prove to be something as simple as a loose cable connecting the display to the GPU, or maybe a faulty cable. You can look over iFixit's repair guides to see if it's something you want to tackle yourself. Opening up these iMacs is not for the faint of heart though... it is very easy to damage a cable if you aren't extremely careful (I damaged one myself). [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Late 2009 iMac. Screen flickering, then blacking out.
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