x3 120 or x2 140mm Intake Fans?

Discussion in 'Die-hard Overclocking & Case Modifications' started by MegaFalloutFan, Aug 2, 2018.

  1. MegaFalloutFan

    MegaFalloutFan Maha Guru

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    Hi,
    My Define R6 case allows two 140 front intake or three 120mm intake, whats better?
    Interested in either 1200rpm noctuas [PWM locked at 1000rpm] or maybe even as low as 800rpm noctuas [but im afraid that 800rpm is really useless]

    So guys, any idea? Whats better x3 120mm or x2 140mm intakes blowing at HDD cage filed iwth 4-5 HDD's [all modern modes, so no 50 Celsius like in older models, the worst i get is 40 Celsius during load and 36-37 idle]
     
  2. Agent-A01

    Agent-A01 Ancient Guru

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    140mm generally have a better airflow to dba ratio; for simplicity I would stick with 2 140s.
     
  3. MegaFalloutFan

    MegaFalloutFan Maha Guru

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    Any experience with 800rpm fans? I generally overclock my GPU during gaming and CPU [but this time with 8700K since 4K gaming has zero gain from higher CPU clocks, i just enabled all core 4.7Ghz turbo]
    I plan on getting the new i9 8/16 core Intel if its compatible with my mobo [I have a feeling it will, Gigabyte already released new bios update with new CPU microcode] and probably ill keep it at default or lock Turbo to highest core [Its Bios option]
    So plus minus thats my system, right now with 1080ti and the next x080 and the x080ti that comes after, i think the most heat generating device in system is the GPU, VRMs, the Hard disks and couple nvme drive, Intel 900p get to 37-40 Celsius during idle and Corsair mp500 is idling 37
     
  4. asmas reras

    asmas reras Guest

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    X3 120mmm in my opinion . :)
     

  5. jura11

    jura11 Guest

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    Hi there

    Fractal Design Define R6 is nice case, but supplied fans are just rubbish and definitely you will benefit from better fans, I would go route of the 2*140mm fans rather than 3*120mm, 2*140mm will push same or similar amount of air as 3*120mm fans at same RPM and 2*140mm fans would be quieter

    Good fans which I can highly recommend are Phanteks PH-F140MP or PH-F140XP, Thermalright TY-143SQ or TY-147ASQ, BeQuiet Silent Wings 3 etc

    For budget I can suggest Arctic F14 PWM fans or Noiseblocker BlackSilent Fan XLP 140mm

    Hope this helps

    Thanks, Jura
     
  6. darrenj

    darrenj Ancient Guru

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    Are we talking about pulling air onto a radiator or just into the case?
     
  7. jura11

    jura11 Guest

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    Hi there

    Above we are talking about the case cooling, not radiator

    2*140mm fans would be quiter on radiators than 3*120mm fans,but difference between the 280mm and 360mm in thermal dissipation at same RPM is around 30-60W

    At 750RPM and 10°C water delta T, HWLabs SR-2 280mm will dissipate around 169.3W and SR-2 360mm will dissipate around 191.3W.

    At 1300RPM same radiator 280mm will dissipate around 264.1W and 360mm radiator will dissipate around 302.3W

    And at 1850RPM same radiator 280mm will dissipate around 346.6W and 360mm will dissipate around 400.6W

    Here is link on these tests or reviews

    HWLabs SR-2 280mm radiator

    https://www.xtremerigs.net/2016/03/02/hardware-labs-sr2-280-multi-port-radiator-review/5/

    HWLabs SR-2 360mm radiator

    https://www.xtremerigs.net/2015/05/29/hardware-labs-sr2-360mm-radiator-review/5/

    Hope this helps

    Thanks, Jura
     
  8. darrenj

    darrenj Ancient Guru

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    I have EK Vardar RGB 120m in the front of my Define R6. Very high static pressure, for my rad. I placed the three 140mm that came with the case on the top. All seems to work very well.
    The Vardars are amazing, but expensive, but amazing.
     

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