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The 2013 revamp of the desktop Mac series known as the Mac Pro.

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Shuts down unexpectly with out warning

Some times it runs for long periods of time but then when I try to work on it well it shuts down, or the screen goes black. Doesn’t seem like the machine actually shuts down just the screen?

I’m thinking I need to reseat the graphics cards with some fresh arctic silver paste?

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1 Answer

Most Helpful Answer

You’ll need to see if you can access your system from a second Mac using screen sharing when you loose the display. Are you abel to get to it?

If you can’t you’ll need to run diagnostics holding the D key when your restart the system. Then check the onboard diagnostic LED’s

reference: Mac startup key combinations

I wouldn’t refresh the thermal paste quite yet.

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