How important is a side panel fan?

[Cs342]

Honestly, this would be my approach:

 

3 exhaust and 1 intake?? isn't that bad

[laxer]

For dust yes, for natural airflow no.

[mgsstar]

Honestly, this would be my approach:

 

I would turn the rear from exhaust to an intake and add a Silverstone fan filter.

[Cs342]

I would turn the rear from exhaust to an intake and add a Silverstone fan filter.

Tbh I think I'll just use the top 200mm fan to intake and blow cool air onto my CPU that would be  the best option imo

[xByakko]

it CAN make a significant difference IF and only IF your other intakes (normally your front fans) are not sufficient/low quality, however know its corsair, chances are you wont have problem unless you are overclocking your gpu extremely hard, then it may help
 

i had a older budget cooler master case that only had 1 intake and 1 exhaust, and my reference 550ti was going 80+ degree celcius when under heavy gaming load. i added 2 high rpm fans (also cooler master) on the slots directly next to the gpu and the temp dropped at least 10 degrees. however it was noisy and power consuming. now i have two front intake and 1 rear exhaust using high quality (noctua) fans, and my overclocked 7870 is running perfectly fine under the same "load".

 

tl;dr  you probably dont need it cause its corsair, but see how you do without a side fan first