One this everyone battles regardless if you air cool or water cool is heat. Heat is the archenemy of the CPU, the cooler your processor runs the better you system will perform. There has always been one thing that I have wondered, how much does the heat inside your case affect your air cooler. If you were to pull only fresh air into your case and push it directly through your air cooler would that improve your cpu temps. Well you all wondered the same so I got to work printed out some adapters and ducted my cpu fan to my front panel case fan and the results were more than I expected.
My Thingiverse
https://www.thingiverse.com/thing:388...
Cooler used in this video Mugen 5 Rev B,
https://www.amazon.com/MugenRevCPU...
Case fans Noctua A12x25
Printer used
https://www.amazon.com/s/ref=as_li_ss...