Which fans should I use

[rwd702]

I have a Thermaltake Versa N21 case and I was thinking about getting the Corsair air series SP120 and AF120, the case can have 2 front fans, 2 in the top and 1 in the back, I have a radiator mounted in the top and since only one fan is blocked by the drive cage in the front i was planning on buying 1 sp fan to deal with the cage and the other one in the front would be an af fan as well as the one in the back.

Is it a good idea to put the fans this way or should I use other fans?

 

[velocityg4]

No need to put such expensive fans in a budget case.

Arctic F12 are excellent fans. They are quier, have good airflow and pretty high static pressure. You can get also get them in a five pack and save more money per unit. You may as well get the five pack as it costs as much as buying three individually. These are the fans I use. I've got two cooling an i5-3570K at 4.2Ghz and GTX 970. My temps don't go above 60C. I also used five in a five GPU mining rig pulling air through a MERV 12 HEPA filter. They kept them all cool.

https://www.amazon.com/ARCTIC-F12-PWM-PST-Technology/dp/B002QVLBM2/

Anyways, as far as a radiator is concerned. You do not want either of those Corsair fans. They are low static pressure. Despite their marketing claims to the contrary. If you do want a Corsair fan on the radiator. Get the ML120 Pro which will get about 60CFM (not the RGB one the RGB model has low static pressure for some reason). The Arctic F12 PWM PST gets decent radiator air flow, about 40CFM. Which should be fine if you want to keep costs down.
https://www.amazon.com/Corsair-Premium-Magnetic-Levitation-CO-9050040-WW/dp/B01G5I6O4Q/

As far as price/performance goes. You aren't going to beat the Arctic fans. Since five cost as much as one ML120 Pro. I guess for optimal cooling. I'd do the ML120 Pro on the radiator. Then the Arctic F12 on all other mounts.

The only real disadvantages of the ML120 Pro are cost and noise. It moves more air than the Arctic. Since it runs at a higher RPM.

 

[scout_03]

see these 70 cfm https://cougargaming.com/us/products/fans/vortex_pwm_fan/

 

[velocityg4]

see these 70 cfm https://cougargaming.com/us/products/fans/vortex_pwm_fan/

That is open air. The question is what CFM through a radiator? They only generate 2.2 mm H20 static pressure. The ML120 generates 4.2mm H20 static pressure. The Arctic F12 (unknown static pressure) will do 82 CFM unobstructed and the ML120 Pro 102 CFM unobstructed.

 

[joaojudas]

Considering the ML Pro corner caps bend when you screw it and also considering you get half centimeter gap in the radiator and the fan, I would buy other fans for radiators.