Apple to launch graphics card replacement program for iMacs

According to information provided by 9to5Mac, Apple is starting a replacement program for the graphics card used in some mid-2011 iMacs.

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.

In order to get the graphic card replaced the serial number of your iMac should finish with one of the following groups (for example, xxxxxxxxDHJQ):
● DHJQ, DHJW, DL8Q, DNGH, DNJ9, or DMW8
● DPM1, DPM2, DPNV, DNY0, DRVP, DY6F, F610

The video below describes the graphics issue. If you own one of the Macs models mentioned above, the AMD graphics card will be replaced for free for three years from the computer's purchase date. If the card is already replaced at your expense, you may get  refund.