Last year Apple released a 'quality' program to replace some AMD 6970M video cards in some iMacs which are affected by a problem with the cards. Yesterday we changed one of these cards for a customer and thought we should remind people that this program is in place and runs for 3 years from the date of purchase of your iMac.
See the Apple article here to see if your iMac may be affected.
Above you can see the iMac with its logic board removed and the graphics cards at the bottom of the photo. All our work is carried out on ESD protected benches which are regularly tested. Contact Ubertechs today if you think your iMac may need repair.