Two NHD15 dual tower air coolers in a 16L SFF custom chassis. Yes, two. The fin stacks mesh perfectly, creating a dense tower of power. The case frame is made of makerbeam and M4 threaded rods, and the side panels are wood. The top and bottom panels and internal brackets are 3D printed

hardware:

Ryzen 3600

GTX 1080

Gigabyte X570i

Corsair SF600

Temps:

Test Ryzen 5 3600 GTX 1080 Fan Speed
OCCT Power Test 85 57 1300
CB20 74 32 1000
Heaven 79 56 1000
CB20+Heaven 80 59 1300
GPU temps are amazing across the board. CPU temps, not so much. There's a simple reason for this: Overlapped fins. Noctua obviously designed the king of air coolers with a certain fin spacing for a reason. Shoving a whole additional set of fins inside the space intended for one set is obviously not great for airflow. Also, as the build settled, the fins started crossing with a |\| pattern instead of a ||| pattern. (if my ASCII art makes sense). I remember getting much better temps when I first assembled it, which would support this theory, as shown in my last post about this project.

The first tower on the 1080 got fresh air, which is why it stayed so frosty. All that being said, during normal loads temps are much more reasonable.