Help choosing case fans.

Sikoo

Honorable
Nov 7, 2013
22
0
10,510
I have the NZXT source 210 which comes with one rear 120mm exhaust fan.I want to buy more fans to improve cooling. Mainly 2x120mm front intakes and 1x120mm top exhaust.The case has space for one more top exhaust and one 120 or 140mm fan on the side but i think i don't need that much fans as i only have my FX-4100 overclocked to 4.0Ghz and don't want to overclock my sapphire HD 7870 and i also read somewhere that a side fan can mess with airflow.After alot of searching i narrowed it down to two fans that i can afford and i need help choosing which one

ARCTIC F12 PWM CO http://
Cooler Master SickleFlow http://

I like the arctic fan as it has PWM sharing and i won't have to buy a fan controller and like the idea of my intake fans speeding up with the cpu fan but i don't know if i have to buy a pst cable or not.
The cooler master fan looks good with the leds but i found on multiple reviews and youtube videos that they are noisy and fail after a short while or produce clicking noises.

Are four fans enough in my case?
Should i install a side fan to cool my gpu?

Thanks in advance :)