Through process of elimination, we've determined the GPU to be the culprit here. We have tested both with and without third party RAM and it makes no difference. Some days we will go all day without a single crash, other days we crash three or four times. The issue is extremely difficult to replicate, with no specific set of actions that seem to trigger the issues. I've read reports of people with these issues having their machine entirely replaced by Apple to no avail - the issues persist. The only difference between the two W5700X machines that crash daily and the one machine with W5700X that doesn't crash daily is the monitor setup - the stable machine only has one of the 4K Dell monitors connected, with a second lower resolution LG display attached as the second monitor.
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We have two additional Mac Pro 7,1 - one with the Vega II Duo and another with a W5700X that have had no issues.
We are never presented with an error dialog upon restart (No "Your computer was restarted because of a problem" windows, no crash log is presented).
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Often times the computer will boot into password recovery mode. We have to disconnect the monitors, then reconnect them. What is most strange about these crashes for us is that sometimes we are unable to get the computers to start up again. I've seen these issues reported in numerous other locations, but no threads here on the Apple Support forum - so I wanted to start gathering things here to hopefully find a remedy for all of us. These machines will turn off randomly or freeze entirely when opening or using these applications.īoth machines have two 4K Dell monitors - one connected via the HDMI port on the GPU, and the other connected with an HDMI to USB C connector to the GPU (second bus Thunderbolt ports).īoth machines are running the last version of Catalina 10.15.7. Our machines are used in a video production environment running Adobe CC (Premiere Pro, After Effects, Media Encoder).
We've got two Mac Pro 7,1 with the W5700X and both have serious freezing and crashing issues.