Should I replace my case fans?

Dan_P

Dan_P

Dan_P

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Hi All,

Looking for a little bit of advice, I currently have my rig in an NZXT Noctis 450 case (Link here) with the CPU cooled by a Corsair H115i and a G1 Gaming 980Ti. I am trying to work out if I would see improvements in overall temperatures if I replaced the included case fans to better quality fans?

My fan options are below:
Front: 2 x 140mm or 3 x 120mm (3 x 120mm currently)
Rear: 1 x 140mm or 1 x 120mm (1 x 140mm currently)

If it doesn't sacrifice too much I would prefer RGB fans to fit the other lighting in my rig.

If it helps - full rig is in my signature.

Thank you in advance,
Dan
 
So do you have 2 140mm fans installed in the front and 1 140mm in the rear already? If so, buying new fans won't likely make much difference. There's not much between 2 140mm fans and 3 120mm fans either.

Do you have the H115i installed in the roof? If so I can't think what else you could do with the fans alone to your temps. Which temp were you looking to lower?
 
Aa83 said:
So do you have 2 140mm fans installed in the front and 1 140mm in the rear already? If so, buying new fans won't likely make much difference. There's not much between 2 140mm fans and 3 120mm fans either.

Do you have the H115i installed in the roof? If so I can't think what else you could do with the fans alone to your temps. Which temp were you looking to lower?
Click to expand...

I have 3 x 120mm (NZXT case) fans in the front, 1 x 140mm (NZXT case) fan in the back and the h115i with its two Corsair fans mounted to the roof. I was generally hoping to increase air flow and reduce overall temperatures while also adding more RGB effect.
 
Case fans don't do miracles. Have you set a custom fan profile (1:1 or so) for your 980Ti in Afterburner? Make sure your H115i fans are ramping up enough.

Are the H115i fans under the radiator and blowing through it towards the top and out?
 
You can certainly add in RGB fans just for the lighting, but don't expect them to do anything to the temps over your existing fans. If you want to go down that route, the Corsair SP120 fans will be your best bet I think:

https://www.overclockers.co.uk/cors...x-fan-pack-includes-controller-fg-066-cs.html
https://www.overclockers.co.uk/cors...-performance-fan-no-controller-fg-064-cs.html
https://www.overclockers.co.uk/cors...rmance-fan-includes-controller-fg-065-cs.html

You can spend more money and get the Corsair HD RGB fans, but again don't expect much difference using them as case fans.
 
3x 120mm intakes and 3x 140mm exhausts means your are limited to the amount of air the 3x 120mm fans will flow. 2x 140mm fans usually move about the same amount of air as 3x 120mm fans .. so you have 3x exhaust fan trying to exhaust more air than is flowing into case. Remember, your case will only flow the smaller amount of the two; intake and exhaust. In your case (no pun) you are most likely sucking ducty air in any small leak in your case.
 
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