While Apple had replaced any faulty systems under warranty, those whose devices fail outside warranty - even those who had already received a replacement only to find it suffering from the same issue - had been left with a charge of several hundred pounds for a replacement motherboard, an approach which made Apple the target of a class-action lawsuit last year. This results in cracks which interfere with the GPU's operation, manifesting as graphics corruption, crashes, and entirely dead laptops. The GPU, a component which frequently varies in temperature depending on load, is connected to the motherboard via a lead-free solder which becomes brittle through repeated thermal cycling. Apple has finally admitted culpability in the long-running saga of MacBook Pro laptops with faulty graphics hardware, launching a repair extension programme for a swathe of its customers.Ä«uyers of Apple's 2011-era MacBook Pro have long maintained that the device suffers from a serious design flaw which causes premature failure.
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