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Hello, please help me out with mine. . When I turn it on , it chimes and the fans work, but nothing lights up at all. Please help. Thank you
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Sorry, I did not see this question earlier.
iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program
Apple has determined that some AMD Radeon HD 6970M video cards used in 27-inch iMac computers with 3.1GHz quad-core Intel Core i5 or 3.4GHz quad-core Intel Core i7 processors may fail, causing the computer’s display to appear distorted, white or blue with vertical lines, or to turn black. iMac computers with affected video cards were sold between May 2011 and October 2012.
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Hello Jerry,
Have you may be an external monitor? If yes try to connect your iMac to external monitor and let me know if you can see your desktop! Good luck.
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