Airflow and rear fan

[ReddHR]

I ve got a new Cooler Master k280 case.
Now ive got one fan infront(intake) of the case as a default, one on the back as usual(exhaust), so now i am wondering if even need the one on the left side if you know what i mean? If yes do i need him as intake or exhaust or i dont even need it?

I menaged my cables as nice possible i could so here are few pics.

https://imagizer.imageshack.us/v2/525x700q90/910/VYAyC5.jpg
https://imagizer.imageshack.us/v2/933x700q50/908/yeDVnJ.jpg
https://imagizer.imageshack.us/v2/933x700q90/633/Q136Iu.jpg
https://imagizer.imageshack.us/v2/525x700q90/633/blNIf3.jpg

 

[smorizio]

side fan will help in gaming. set it to pull cold air in and blow over the gpu and cpu. the cooler on the cpu is an older on and with more airflow in the case it stay cooler when gaming the same with the gpu if you have air blowing across it it help push hot air up and out.