So they lied about part quality and used shit components. I can't say I'm surprised at this point. It's also possible this is proof that they were mining with customer equipment because they either have a huge design flaw or that miner has been running for months. Even cheap capacitors don't start failing after 2 weeks.
I've received no human response yet from BA to my support ticket requesting a PSU replacement for my failed unit. It's been about 45 hours now.
Since the unit is offline anyway I thought I'd take it apart and see if I could find another way to get power into it. No luck on that front yet, but I did find something else.
I saw that there are 10 decent-sized electrolytic caps on the backplane, and I scanned the tops of them out of habit for signs of bulging, and guess what...out of the 10 caps, 5 had bulging tops, 2 of them to the point where the electrolyte was leaking out. That's after just 13 days of use.
They're labeled as Sanyo brand caps, rated for 16V 1500uf, 105c.
I guess I should think about ordering up some replacements. I wonder what kind of shape those caps are in in the still-operating miner...