PCI slot angled 120mm fan mount

thingiverse

This was made to make a mount for a 120mm high pressure noctua fan to blow on the backplate of a 3090 graphics card. I dropped 2 40x40x20mm heatsinks I had into the void for the air to blow through. Flipping the fan to pull from the back and blow upward works just about as well. Your mileage may vary depending on case air paths and if you are using an AIO. Supports were used for the angled fan area.