Pre-installed fans good enough?

[azn96]

Buying a Fractal Refine R6 that comes with 3 140 mm fans (2 Front, 1 Rear). I will be also adding a 4th 140 mm external fan on top. These are the fans:

Pre-installed fans: https://www.newegg.com/Product/Product.aspx?Item=N82E16835352026
4th Fan: https://www.newegg.com/Product/Product.aspx?Item=N82E16835103078

The fans that come with the case look decent, but probably won't be good enough to cool a system with an OC'd i7-8700k and GTX 1080. If I add a 120 mm fan in the front, and another 120 mm fan in either the rear or top, will it be enough to keep cool temps?

120 mm fans: https://www.amazon.com/Cooler-Master-Bearing-Computer-Radiators/dp/B000O8I474

Or do I need to buy top-notch fans from Noctua or be quiet! and replace the pre-installed ones?

 

[tejayd]

You're fine. Most fans should move enough air. The higher end fans tend to do it with less noise. 2 intake and 2 exhaust will do well

 

[Gam3r01]

The stock fans (plus one extra) will be plenty.
No need for the two extra 120mm fans, and no need to buy noctua or spend extra.

 

[azn96]

You're fine. Most fans should move enough air. The higher end fans tend to do it with less noise. 2 intake and 2 exhaust will do well

The stock fans (plus one extra) will be plenty.
No need for the two extra 120mm fans, and no need to buy noctua or spend extra.

will the 2 extra fans help though? since I already have them laying around in my house

 

[Gam3r01]

If you already have them, they probably wont hurt.
Most likely though, youll just see similar temps with more noise.

 

[azn96]

If you already have them, they probably wont hurt.
Most likely though, youll just see similar temps with more noise.

I see. Thank you!