Crazy looking build... is it not a bit noisey with it not being in a case?
Surprisingly quiet - I have a lot of excess cooling potential, so can run the fans fairly low.
Small update - I have mounted the tron disc on the PSU and it looks rubbish - it sits way too high and just looks wrong. I think I can swap the PSU onto the back of the board without having to take everything apart, so if that works, I'll be able to sit the disc flush and it should look much better. The old fire tablet that runs the monitoring software appears to have given up the ghost, so this is a good chance to replace that too.