Thank you for looking into this. I made no changes to create the crash. Just the instructions at the top of this post. I guess the version of module may make a difference due to DRAM timing. I have only seen this problem on D00 modules so far, but I haven’t tested other revisions.
I have taken the rig down which reproduced this problem, and I don’t think I will be able to put it back together.
We read this in system/nvzramconfig.service:
“TPC power gating must be enabled before anything touching gpu”
After=nvpmodel.service
I have accepted the above comment as the explanation for what I saw.