A few upgrades in my setup.
New chassis for both the "main" PC and the living room "console PC".
The one in the gaming room is the Havn hs 420, with mostly Noctua fans + phanteks D30 fans (one regular and one reverse) in the rear.
The one connected to the TV in the living room is the Antec Flux with all Noctua fans.
I wanted a solid side panel on that one to avoid reflections from the TV screen.
Both have 64gb ram (thankfully brought before the recent price increases).
Rtx 5090 / 9800X3D / X870E-E in the main one, and Rtx 5070 TI / 7800X3D / X870 in the living room-PC.
I replaced the stock fans with Noctua fans on both AIO coolers, which made quite a positive difference.
The Havn has a huge 420mm AIO in the top, which I couldn't fit in the last chassis.
Both are dead silent, and i'm done for a few years now.