Ha, this just popped up on HN again. I saw this last year but forgot to
bookmark it, and have been looking for it since:
https://nonint.com/2022/05/30/my-deep-learning-rig/
The impressive feat here is driving 8 consumer-grade GPUs (each with
350W draw) off of a single mainboard, and with two independent power
supplies. This requires all sorts of trickery. Just figuring out the
cooling alone is a major feat. This is amazing stuff.
Two of those rigs could probably cover all the AMD GPUs we want to
test.. though most hosts will require something rackable, I fear.