Printed from http://www.electronista.com

Apple now replacing graphics cards for some mid-2011 27-inch iMacs

updated 05:45 pm EDT, Mon August 19, 2013

AMD Radeon HD 6970M video cards said to run exceptionally hot, fail early

Users who have a 27-inch "Mid 2011" iMac, which was sold between May of 2011 and October of 2012, may have a failure-prone video card that might need replacing, Apple has revealed. The company has started an official program to replace cards that have failed or are failing on iMacs up to three years after the initial purchase, even if the customer's original warranty has expired. Only select models of the 27-inch iMac with the AMD Radeon HD 6970M cards are affected, and customers who have already paid for repairs can be compensated.

The defective cards can cause video distortions, described as "white or blue with vertical lines" in an Apple support document, or may just fail outright -- resulting in a black screen but indications that the computer is otherwise working fine. The specific models affected are the "Mid 2011" 27-inch iMacs with 3.1GHz quad-core Intel Core i5 processors, or those with 3.4GHz quad-core Intel Core i7 processors, both of which came standard with the AMD Radeon HD 6970M cards.

Some users with affected machines claim the problem stems from Apple's use of lead-free solder in the assembly of the machine, which they say is not as resilient to heat as leaded-solder. However, Apple has had a number of video-card issues related to soldering over the years (most notoriously the iBook G3 and G4 models) long before it began using lead-free solder. Furthermore, iMacs which don't have the AMD Radeon HD 6970M card don't appear to be affected by the issue.

In order to qualify for a free replacement, the existing machine must be showing signs of issues. Users who are not experiencing issues will have until three years from the date of purchase to see if problems develop, and can contact any local Apple Store, Apple Authorized Service Provider or simply call Apple Technical Support if the card develops issues.



By Electronista Staff
toggle

Comments

Login Here

Not a member of the MacNN forums? Register now for free.

toggle

Network Headlines

toggle

Most Popular

Sponsor

Recent Reviews

Razer Kraken Pro headset

Gaming headphones are a challenge to get right, for a long list of reasons that are unique to the consumer buying them. Some shoppers ...

Patriot Aero Wireless Mobile Drive

Regardless of how large a tablet you buy, you always want more space. There's always one more movie or another album you'd cram on, if ...

Patriot Fuel+ 6000 and 9000mAh batteries

Mobile device batteries are better than they used to be, but there's always a scenario where users could use more juice. Upgrade manuf ...

Sponsor

toggle

Most Commented

 
toggle

Popular News