Case Fan questions

AnimeDudeJ · January 12, 2015

okay so i'm doing my first build in a few days and i'm wondering how i should hook up my fans.

i have 2x 4 pin headers

my setup is in a Bitfenix prodigy with the seidon 120V V2 liquid cooler so thats:

rear: 1x 120mm fan using pwm (cause its for the CPU)

top: 2x120mm stock bitfenix case fans 3 pin

fron: 1x 200mm NZXT RF-FZ20S-U1 3 pin

i'm considering getting a 9 y splitter to use on the two top fans so that when the machine is idling hopefully it will have a positive pressure inside the machine so i avoid unnesecary buildup of dust.

i could get this:

for a little more but i'm not sure how it works. does the molex supply extra power?

i could just go with the sollution i've got now with the three fans (not the Seidon) being connected to the PSU via a Molex to 2 pin and let the fans run at 100% all the time and maybe get a fan controller at a later date?

as allways any help is greatly appreciated.

EDIT: i forgot that i dont have room in the OD slot since the 120mm fans are blocking it.