Components – especially the GPU itself – may cycle between cold and hot several times a day. Laptops have very high thermal stresses, because they are often left cold for quite long periods, then run and become hot enough to warm bare thighs, if you still use them according to their name. Modern high-performance graphics cards run hot, because they are doing a lot in a small volume, particularly in compact systems such as laptops and all-in-one desktop models. Although it remains possible that some of these issues with graphics cards are the result of GPU failure, the single common cause which accounts for (almost) all is the use of lead-free solder. The last such blight to strike the computer industry – that of bad capacitors, or ‘capacitor plague’ – was the result of counterfeit components. Various models, mainly of laptops, from Windows PC manufacturers including Asus, Lenovo, and HP, have had similar high failure rates in their graphics cards. Sadly for me, that extension only covered the first four years of use, a period which expired a few months ago.Īpple is not the only computer manufacturer to have such problems. My own recently deceased iMac 27″ Mid 2011 (iMac12,2) looks like it has suffered failure in its Radeon HS 6970M graphics card, which now appears to have been another model which has had a warranty extension because of this issue.
The most prominent was probably that in 2011 MacBook Pro models, but several other MacBook Pros, iMacs, and others have been affected.
Over the last few years, Apple has had several problems with the graphics cards which it has installed in various models of Mac.
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