Phanteks Evolv ATX | Keep stock fan config or replace with Noctua NF-F12s?

Luyuan20

Commendable
May 9, 2016
24
0
1,510
So I'm kinda in a dilemma. After buying 4x Noctua NF-F12 PWM fans for my In Win 805 and ultimately returning it due to defects, I'm not sure what to do with these fans as they can't be returned.

The new case I have on order is a Phanteks Enthoo Evolv ATX mid tower case. It includes 1x 140mm rear fan and 2x 140mm front fans, but is capable of 3x120mm in the front and top.

I do plan to use 1x 120mm NF-F12 for my Evo 212.
I'm not sure what I should do with the other 3x NF-F12 fans to maintain positive air pressure and get the best airflow.

Do I put the 2x 140mm on the front and use the 3 extra noctua fans in the top? Or would they be better as a top vent fan because they may possibly have better static pressure?

I'm attempting to go for a quiet build, and at the same time have adequate airflow and positive pressure. I also plan on undervolting my i7-6700K to 1.12v and running at stock speeds since I won't be water cooling or anything. Not entirely sure the best config for this case. Any help would be appreciated. Thank you for your time.
 
Solution
You'll probably have sufficient cooling and quiet with the supplied Phanteks fans. I would probably try everything out with the included fans before adding others. You could sell them if you don't need them.

Lutfij

Titan
Moderator
Do I put the 2x 140mm on the front and use the 3 extra noctua fans in the front?
You could just have the Nocua's at the top. Remember that a single 120mm fan moves less air than a single 140mm fan at the same rpm which also means more noise on the 120mm fan due to more turbulence trying to move said air by 140mm fan.

Static pressured fans are best had on restrictive components like heatsinks or radiators. They don't make much of a case airflow fan.
 

Luyuan20

Commendable
May 9, 2016
24
0
1,510


I'll be using either the Nvidia GTX 1070 or GTX 1080 once its out. No GPU for now. I'm probably going to buy an Asus Strix version of it.
 

Luyuan20

Commendable
May 9, 2016
24
0
1,510


I understand that a 140mm will move more air than a 120mm fan, but won't 3x 120mm fans move more air than 2x 140mm? I'm sure theres more to it than using what the manufacturer rated, but thats why I'm confused now.

included 140mm fan: http://www.newegg.ca/Product/Product.aspx?Item=N82E16835709023
extra noctua fans: http://www.newegg.ca/Product/Product.aspx?Item=9SIA7RD3H03507&cm_re=nf-f12-_-35-608-026-_-Product

Phanteks 140mm is rated for 82.1 CFM. 2x 82.1 = 164.2 CFM
Noctua 120mm is rated for 55CFM. 3x 55CFM = 165 CFM

Thats what I've worked out, but I'm not sure if it works that way in reality.