Chosen Solution
Good afternoon everyone.. I recently picked up a nicely configured late 2013 Mac Pro that is having an issue I can’t seem to resolve. Machine configuration is as follows: 8 core/16 thread Xeon processor 64 GB ECC RAM 1 TB SSD 2 AMD FirePro D500 GPUs with 3 GB vRAM each 4 USB 3 ports 6 Thunderbolt 2 ports 2 GB Ethernet ports Problem is it’ll be running along just fine, and then for no apparent reason, it will just power off. If I hit the power button, it will come back up like normal and run fine. Sometimes it will go several days without doing this, and other times it will do it a couple of times a day. Do you have any idea what may be wrong? Any help or suggestions are greatly appreciated. Thanks, and have a great weekend.
There are two possibilities. The first is the system is just going into sleep mode. A quick hit to the keyboard, trackpad, mouse or power button should wake the system (not restart). If the system restarts then you likely hit a crash event. Make sure your apps are up to date for your version of macOS. You may need to review the crash files Tutorial: An introduction to reading Mac OS X crash reports You might want to run the onboard diagnostics as well. Restart your system and press the D key to enter Reference: Mac startup key combinations
