He said "As many machines as we have shipped with the 5700 MPX module, we would be inundated with complaints by now if this was a wide-spread problem, and I am not seeing that"
Well, again, I had two back-to-back machines w/ W5700X (returned both) before finally building out a Pro Vega II system, which resulted in a stable system (2-1/2 weeks now, and counting -- nary a hiccup muchless a panic). Also again, same software installation profile and end-user workflow (it's my personal machine, so nobody else uses it, and I've been working on a long-term project so the day-to-day usage patterns are near identical).
So, regarding the support tech's claim, the empirical evidence suggest otherwise. Or I was incredibly unlucky to get two bad machines in a row, with identical symptoms also consistent with the symptoms of other W5700X users in this thread. The claim is also inconsistent with the conversation I had with Apple support, where the the tech latched onto the problem I described very quickly, and qualified it as a "known issue" that Apple is working to address.
I'm not suggesting the support tech is lying to you, but there are many possibilities that could explain the issue (bad hardware batch, different integral component sources, etc.). We just don't know. But, all arrows seem to point to the W5700X card itself, or integration of it into MacPro hardware / Catalina. Regarding the tech's claim that seems not to be GPU related, I disagree. I do, however, agree with the tech's claim that Apple should be inundated with complaints by now, which is something I also expressed curiously about above. Again, many explanations possible.
Based on my experiences and others from this thread, I am confident that if you were to swap out the W5700X in your machine for a Pro Vega II, the issues with your system would go away. Possibly a repave needed depending on if and how much you've needed to tweak your system config to try and work around the problem -- it hardly feels like a virgin system anymore and I'm all about controlling the variables when drawing conclusions. Unfortunately, I think you're getting exercised to try and work through this problem w/ Apple support. Hopefully, for your sake, I'm wrong. (It won't be the first or last time! )
Last edited: