For 2012 or earlier Mac Pros which aren't fixed by a standard SMC reset, use the SMC reset button on the motherboard...
Shut down. Unplug the power cord. Open the Mac Pro side access panel. Just below the drive 4 sled and next to the top PCI-e slot is a small button labeled SMC. Press and hold it for 10 seconds. Close the side door. Reconnect the power cord. Wait 5 seconds. Start the Mac normally.
I usually write a blog post about once a week. The latest post can be viewed here: Think for Yourself: In the end, everything is just an opinion. Be skeptical, and think for yourself! (posted 2026-04-25 at 21:12:02). I do podcasts too! You can listen to my latest podcast, here: OJB's Podcast 2026-04-14 How Far is that Star?: How would we really know how big the universe is?
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