Negative air pressure build I recently finished to sell. Sound deadening foam was used to seal the case up so that the negative pressure airflow only enters and exits where it should. This is essential for a good negative pressure setup to work properly and to stop dust accumulation. The foam installed in the GPU area is held on with velcro so that it can be re-adjusted for proper fit if the GPU is changed in the future.

All games in the screenshots are being ran at 2560x1440 max settings with RTX features off.

i7-8700k at 4.8ghz all core overclock with -1 AVX offset.
MSI RTX 2080 Duke with custom overclock

Temperature results:
Far Cry 5 2560x1440 max settings. GPU max 70° CPU max 67°

Battlefield 5 2560x1440 max settings RTX off GPU max 70° CPU max 69°

RealBench Stress Test 1hr CPU 76-81° with a couple spikes at 85°

Notes:
The CPU cooler is modified to fit for clearance. See in process build pictures towards the end.
RAM speed wasn't in the drop down. It's DDR4 3000