3/13/2023 0 Comments Replacement for 2012 mac proNow on switching on again the hard drive makes the usual noises, fans are running, the chime sounds, and then the display shows either a black or grey screen, or a screen full of fine multicolour vertical stripes. Eventually the Mac failed to boot at all. Allowing the Mac to cool down for half an hour initially allowed the Mac to boot properly but then it would only stay on for a few minutes before going black/grey/multicolour screen again. There being no further activity the only option was to force shutdown by pressing the power button for a few seconds. With no prior warning, the display started to flash occasionally, then switched into a grey or black screen mode. My Mac Pro, after just two years and one month since purchase from Apple, appears to have fried its graphics card. The OS X is an up to date version of Mavericks The Mac Pro is a Mid 2012 quad core 3.2GHz model.
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