Unfortunately that's about the cheapest I can find on eBay, no one is selling that version cheaper. There is this other version that's about $100 cheaper:
SXM2 to PCIE Adapter For Nvidia Tesla V100 A100 SXM2 GPU Computing Graphics | eBay
But this one is quite different and doesn't come with an enclosure, heatsink and fan. The heatsinks I've seen other people here use are those giant blocks. I was hoping the other adapter I was looking at that comes with the heatsink and fan in dual slot form factor would be enough to cool an A100.
What would I have to watch out for on my system that would cause the card to be unreliable/fall of the bus? Is it my motherboard, OS or the adapter itself? What boot commands are there that would make it more reliable on a Windows system?
And yeah I'm a bit nervous about the cooling as well. The adapter I was looking at initially has a heatsink, fan and enclosure to make the whole thing look like a typical dual slot GPU. But I wonder how well that'd be able to cool this A100. Supposedly it's sufficient for the V100 and it's listed as supporting the A100 so I'm not sure. Haven't found anyone that's actually tested that specific adapter with this particular A100 yet.