Here's how it unfolded:
- I'm in Canada, and Bitmain insisted I ship the whole unit back to them for warranty repairs. They acknowledged the US repair shop, but said it just had to go to them for warranty. Canada was considered international (rough).
- It costs $260 to ship to Hong Kong (ouch), and if it's anything like the original purchase, I'd be paying another $260 when it gets back.
They told me I could ship it to Bitmainwarranty.com in Denver, CO -- but on my own dime; the repair wouldn't be done under warranty.
When I called bitmainwarranty - they were extremely nice. They kinda laughed at the 'ship the whole unit' statement; and invited me to simply send the burnt board. It cost me $25 to ship, and he suspects he can fix it for next to nothing.
Shipping the board leaves me with ~9thps, so I went that route. I'll update when I get more details on the board and its repair. If it costs less than 500 or so to fix, I'm coming out ahead IMO.
I've used BITMAIN Warranty twice, both times I had an EXCELLENT experience. Most recently a board died on a B4 S9 I have. They were able to fix it for $175 plus shipping. cha ching!