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Case fan replacement for CM ATCS 840 (front/23 cm)

Nickel16
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Hi guys! 

I´m on a pretty old case with the Cooler Master ATCS 840 - but i´m generally speaking still satisfied with it. However i´ve been noticing more and more noise coming from the default case fan in the front.

Since i´m quite noise sensitive i want to replace the fan. I took a look on noctuas website but they only have up to 20cm case fans. Is this gonna work as a replacement for a 23cm fan? Or do i have to get
one with the exact same dimensions? Which case fans can you guys recommend for me? (I´m fine with spending a bit extra for a cool and silent experience)

Thanks a lot in advance! 
 

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7 minutes ago, Nickel16 said:

Hi guys! 

I´m on a pretty old case with the Cooler Master ATCS 840 - but i´m generally speaking still satisfied with it. However i´ve been noticing more and more noise coming from the default case fan in the front.

Since i´m quite noise sensitive i want to replace the fan. I took a look on noctuas website but they only have up to 20cm case fans. Is this gonna work as a replacement for a 23cm fan? Or do i have to get
one with the exact same dimensions? Which case fans can you guys recommend for me? (I´m fine with spending a bit extra for a cool and silent experience)

Thanks a lot in advance! 
 

All that should matter is the size of the fan 120mm or 140mm ...... Why your talking centimeters and all this extra garbage talk what not.

Asus Sabertooth x79 / 4930k @ 4500 @ 1.408v / Gigabyte WF 2080 RTX / Corsair VG 64GB @ 1866 & AX1600i & H115i Pro @ 2x Noctua NF-A14 / Carbide 330r Blackout

Scarlett 2i2 Audio Interface / KRK Rokits 10" / Sennheiser HD 650 / Logitech G Pro Wireless Mouse & G915 Linear & G935 & C920 / SL 88 Grand / Cakewalk / NF-A14 Int P12 Ex
AOC 40" 4k Curved / LG 55" OLED C9 120hz / LaCie Porsche Design 2TB & 500GB / Samsung 950 Pro 500GB / 850 Pro 500GB / Crucial m4 500GB / Asus M.2 Card

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2 minutes ago, Nickel16 said:

@Turtle Rig

23cm ist 230mm fyi

Im thinking hes talking about the width.. My bad...... But ya no worries it will fit in the case no problem.

Asus Sabertooth x79 / 4930k @ 4500 @ 1.408v / Gigabyte WF 2080 RTX / Corsair VG 64GB @ 1866 & AX1600i & H115i Pro @ 2x Noctua NF-A14 / Carbide 330r Blackout

Scarlett 2i2 Audio Interface / KRK Rokits 10" / Sennheiser HD 650 / Logitech G Pro Wireless Mouse & G915 Linear & G935 & C920 / SL 88 Grand / Cakewalk / NF-A14 Int P12 Ex
AOC 40" 4k Curved / LG 55" OLED C9 120hz / LaCie Porsche Design 2TB & 500GB / Samsung 950 Pro 500GB / 850 Pro 500GB / Crucial m4 500GB / Asus M.2 Card

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There are 3 sets of mounting holes with different spacings on the NF-A20 since 200-230mm fans tend to be uncommon and their specs irregular. https://noctua.at/en/nf-a20-pwm/specification

Check and see if the mounting hole spacings on the case match any of these: 154x154, 110x180, 170x170 mm

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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