They were “trio” rigs originally conceived by philipma1957 and Vosk subsequently used the setup. Its basically 3x1080tis on a mobo. Very compact and downtime is limited to just three cards if there are any problems (rather than 7+ cards on a regular rig).

Thats if they are what im talking about of course  .

Heres Voskcoins Youtibe vid of the setup:-

https://youtu.be/fOzz6YFSNxE