Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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screen stay black at strt up

Went a turn on my mac pro ,the screen stay black but the fan are turning, i hear them well and the little led in front on the right side open.

Thank s

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Deck the Halls
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Do you have access to an external monitor? If you do see if you get an image on it.

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Try zapping the PRAM. On start up hold down the following keys P R Command Option. Let it bong twice and see if the screen comes up.

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Ronnie will be eternally grateful.
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