Ultra compact shoebox sized build - goal here was to fit as much power in a small aesthetically pleasing case.

12900K - SP 90. Huge challenge thermally. Ended up with an undervolt setting that matches/slightly exceeds stock performance. 5.1/3.9 @ 1.22 volts LLC4(Asus, ~1.19 volts under load). Sustained boost clocks take a hit in synthetics due to thermal throttling, but gaming can sustain 5.1 at 40-60C depending on game.

3090FE - The EK Vector FE block keeps the GPU pretty cool, topping out at 72C core/70C memory junction in 3DMARK. Replaced the thermal pads with Thermalright 1.5mm pads. Temperatures in gaming tends to be in the 50-60C range.

Radiators and fans - Went with 2 240m NexXxoS ST30 Alphacools. One crossflow at the bottom and a standard one at the top due to port location and space constraints. For the fans, I went with 4 Noctua A12x25 for the best CFM/dBA that would fit in the case. I tend to run the fans at a barely audible level. The 30mm Alphacools and 30mm Phanteks T30 would not have cleared the Louqe tophats since they have less than 60mm of space.

Cats - Domestic shorthair brothers. 8 months old. Found and rescued from a taped up shoebox on the side of the road. Loves sitting on the top of PC cases and laptops where it gets warm. Follow them on Instagram

27,250 Cinebench R23 Multi (severely thermally limited on this one. The Aquanaut Extreme can't manage the heat from synthetics.)
21,012 Time Spy