The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. between the years of 2006 and 2013.

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Random Mac Pro restart/shutdown

My tower just randomly restarts or shuts down. I took it to a certified Apple repair and they said nothing was wrong with it, however the problem persists.

I did have them professionally clean the inside because I noticed the fan would come on stay on after a certain point.

It's also well ventilated.

If I do not use the computer for days, it will work fine for a while. However if I use it consecutive days, the problem appears and happens more frequently. I spent $700 having the "repair" place clean it and tell me nothing was wrong.

Please advise.

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There is software that shuts down, and boots up your computer automagically. Look at what applications launch at startup.. Some possibilities: - System Preferences Energy Saver. Cache cleaning, anti-virus or backup software.

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For anyone having this issue :

Shut down.

Pull out both RAM drawers.

Remove all RAM.

Remove all dust (preferably by dry compressed air).

Carefully but firmly re-seat the RAM on the drawers.

Re-seat the RAM-drawers in your Mac Pro.

I've had this random shut-down issue right around the time Steve died, so it could also be related to his reality distortion field energy playing havoc on my Mac Pro ... but somehow I doubt it ;-)

(The restart occurs after an unscheduled shutdown, if you have automatic restarts enabled in the Energy Saver preference panel.)

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If that doesn't sort it, remove all RAM, and reinstall just 1 pair.

Test pair by pair until offending pair is found.

Then swap 1 RAM module with one that is known to be OK to find the offending module.


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You are correct Sir, Thanks for the information.

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Cynthia will be eternally grateful.
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