I bought a datacenter GPU that doesn't fit in a normal motherboard, macgyvered the fan with jumper wires, and now I'm running a model that ties with Claude Sonnet 4.6 on benchmarks, all for £200.
I appreciate the kind words! Until recently, my day job was CAD monkey. I wanted to consolidate the hardware I was cobbling together, found a cheap 8 GPU mining rig and some extra 2020 extrusions to play with.
The seller for the mezzanine said it followed the mATX mounting hole pattern, (it does but is ~75% in the width and doesn’t use all the points). I have a tendency to overthink designs and kind of stalled for a bit before finally taking the plunge and whipping up these struts. I used some brass heat set inserts to accept the standoffs and everything pretty much went right together lol
eBay has some rad Chinese mezzanine boards for these guys too. Nvlink works and everything lol
Cool mezzanine boards, but can we talk about your dope af custom jig for offset mounting arbitrary boards?
I appreciate the kind words! Until recently, my day job was CAD monkey. I wanted to consolidate the hardware I was cobbling together, found a cheap 8 GPU mining rig and some extra 2020 extrusions to play with.
The seller for the mezzanine said it followed the mATX mounting hole pattern, (it does but is ~75% in the width and doesn’t use all the points). I have a tendency to overthink designs and kind of stalled for a bit before finally taking the plunge and whipping up these struts. I used some brass heat set inserts to accept the standoffs and everything pretty much went right together lol
Damn, even cooler than I expected 🎸 Thank you for the extra details and picture!
The last time I saw a passively cooled GPU was the '90s.
I am using PTM sheets and they idle at decent temps, though I did ziptie some high CFM fans behind them lol