Do I need a bottom fan when my H110 installed in the front of the case?

[DIMILLIONE]

Hey, I have one question and it's about cooling. I have my Corsair H110I GTX installed at the front of my Fractal Define S case with Noctua iPPC fans, with same installed at the back of the case and I have a place on the bottom for another one, so my question is do I need another one at the bottom? Would it increase the noise? Would it help lower the temps?
P.S I using a EVGA GTX 1080 that I guess can benefit from another fan that could be below it
Thank you in advance

 

[clutchc]

That will be determined by the temps inside the case (m/B, chipsets, etc). If it shows you need more airflow, then add the fan.
Yes, more fans mean more noise depending on your fan and the speed you have it running.
Yes, more fan(s) will lower temps.

 

[DIMILLIONE]

Alright the temps looks fine so I won't change anything for now, thank you