2013 Mac Pro Turns Off or Loses Video

Question

2013 Mac Pro Turns Off or Loses Video

Howdy all, I have a 2013 Mac Pro... I call it a Nuclear Reactor instead of a Trashcan, as it is one cool computer in my book BUT, in the last 6 months, it has acted weird and now the issue makes it unusable or does not even always boot.

I use DaVinci Resolve and had been on Mac OS 12 but tried a erase and start from scratch OS 10.15 Catalina OS in case this was some odd OS issue. Appears is not the case.

About 6 months back it seemed when dragging a video clip into my timeline in DaVinci Resolve, the screen would turn off. an HP Open 32" HDMI monitor. No video and if left off, in a few minutes the Mac Pro would reboot. Try again, video loss in DaVinci.

For a while it seemed only in DaVinci did this issue happen but now, it does it at any time, just booting and loses video during boot at Apple Logo to boots OK in morning, runs all day, try again next day and either no boot or boots, seems OK, working on desktop and it goes out again. Can be in DaVinci or just any app now.

Once I was playing a 1080p video, screen went black and loses HDMI connection, but I could hear the video still playing! I have external speakers. So it was still running! Just no video.

Other times screen goes black and guessing it does turn off as the Mac Pro boots itself 5 minutes later.

Any idea? Common issue? How about that CMOS battery on logic board. Could it be it or worse, D700 videos cards the issue or logic board or p/s.

This is a 12 Core Dual D700 video card with 64gb ram and 2TD SSD.

Thanks

TJ

Mac Pro, macOS 12.6

Posted on Oct 13, 2022 11:34 AM

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Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

138,635 points

Oct 13, 2022 11:55 AM in response to SinclairSociety

The CMOS battery causes startup issues when it fails, so that is not likely the cause.

It sounds like the loss of video is just step 1 along a long dismal path that leads to a crash.

To get more insights bout your Mac's performance, I suggest you download this little discovery utility, Etrecheck, run it, and post its report back to the forums for readers to analyze. it fixes NOTHING, only finds and compiles list of information.

Using EtreCheck to Troubleshoot Potential… - Apple Community

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Answer 2

Oct 13, 2022 12:59 PM in response to Grant Bennet-Alder

Thanks. I will download and try this.

Maybe it will show some idea as to what my Mac Pro is doing or not doing and give me some general idea what is going on.

As a base, I erased the whole SSD and went back to an older OS that seemed more timed to when the Mac Pro 2013 was out and installed nothing else other than DaVinci on it to see if I could repeat issue with a VERY clean OS.

Where I could make one video in DaVinci, then next day my Mac Pro refused to boot past the apple logo before losing video, etc.... then booted OK this AM. Just odd.

Thanks again!

TJ

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Answer 3

Oct 13, 2022 06:12 PM in response to SinclairSociety

UGH. almost the worst news possible:

IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GFXB@3/IOPP/GFX

2@0/ATY,IkuraS@3/AMDFramebufferSI

Assertion failed: (isReady - AMD

Your AMD graphics card was found to be in a NOT-READY state.

likely, everything went downhill from there.

You should see if the diagnostic picks up anything.

but that is not good news.

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Answer 4

Oct 14, 2022 06:27 PM in response to Grant Bennet-Alder

Not today as odds are I will just buy the next Mac Mini or the M1 if they have a nice sale for holidays, but will save and buy a used D500 based Mac Pro at some point and downgrade from the D700 I have now. Seems 6 core with D500 go for $400 to $500 now. Maybe in another year they will be down to $300 to $400 range and I will just get a used one that runs and steal the video cards and insert in my 12 core. Guess any D500 pair from a work lower core Mac Pro should work with my 12 core unit? TJ

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