very impartial and constructive post, keep the good work
I'd not use a disk it that position. SOme older HDDs of mine ticked all time and got noisy after that orientation.
the GMC cases are better with 1-2 SSds only. Could use the SSDs inside the front panel too,
I'd do this with the case...
fans, even on HIGH settings ( the case has a controller for the 3 onboard fans) are quiet.
yhey did a decent job on the fans, probably not sleeve bearing. OR a very good sleeve bearing...
I regret only that the memories get a little covered by the HDDs. Cant use ultramega heatsinks or ram...