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Q: Won't turn on after installing new (additional) memory cards

I installed 2 new memory cards in my 27" imac (mid 2011), following the instructions from apple, and now my computer won't turn on. I hear the fan running, but there is no video and it just beeps.Any suggestions?

iMac, OS X Yosemite (10.10.1)

Posted on Nov 18, 2015 9:32 AM

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Q: Won't turn on after installing new (additional) memory cards

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