Addressing what is obviously an all too common flaw with older Nvidia chipsets, Apple has extended the special repair warranty on certain laptop models from two to three years. The issue was first acknowledged by Apple last October and is believed to be an inherent defect in all GeForce 8400M and 8600M graphics processors, based on Nvidia’s choice of non-eutectic contact material in the graphics chips, which leads to overheating and eventually presents itself in the form of distorted or a total lack of visuals.

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