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Cooler Master Nepton 240M Review

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Cooler Master Nepton 240M Test Results

As shown in the table below, the Cooler Master Nepton 240M was the clear winner in terms of noise and cooling performance when operated at full speed.

Cooler Master Nepton 240M Temp and Noise Chart

 In the above test, the Corsair H100 was making so much noise that it would not be practical to have the fans running at that speed in a normal environment. The computer would need to be in a  server room.

The image below is an FLIR infrared camera image showing the Nepton 240 cooler operating at 100% load. Despite the overclock and 100% load, maximum temperature shown by the temperature bar on the far right of the image shows a maximum temperature of only 52.5°.

Cooler Master Nepton 240M Pump FLIR

After 45 minutes of stress testing with the Aida 64 benchmark program, the Nepton 240 maintained a respectable 56.4° average temperature with an ambient temperature of 28°. Despite careful thermal paste application and even pressure on the CPU cooler contact surface, there was still a core to core temperature variation of six or seven degrees.

Cooler Master Nepton 240M Temperatures under stress

Another FLIR image shows the top surface of the Corsair 800D case with the Nepton 240M fans operating at 100% capacity.

Cooler Master Nepton 240M Fans FLIR

With a constant 28 degrees ambient temperature, the CPU very quickly reaches thermal equilibrium and has a very small drift upwards over the 45 minute test.

Cooler Master Nepton 240M stress test


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8 comments

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  1. Andrew Lane

    Hopefully they don’t have the same bearing issue that Corsair had with their version of this unit (H100)…

    1. Aidan Moore

      Hi,

      Time will tell. I’m very impressed with the silence of the unit so far in a 24/7 system , so I’ll be listening for any developing rattling or squeaking.

      BTW, I ran a Corsair H100 for 3 years without developing any bearing noise. The H100 is a good unit, but it’s stock fans run very loud under load.

      Aidan

  2. Marco

    I have a swiftech H220 in a long RMA and I’m thinking to buy the Nepton 240M. How is the H220 vs Nepton 240M ?

    1. Aidan Moore

      Hi Marco,

      Looking at the H220 specifications, the two units appear to be similar in performance. You will notice the lower noise of the Nepton (6.5 dBA min) vs the Swiftech (16dBA min).

      And the Nepton has a 5 year warranty vs the 3 years for the Swiftech. Overall the Nepton would be a great choice. I’ve been using it 24/7 with no issues.

      Good luck!

      1. Marco

        Hi Aidan,

        thanks for your prompt reply. The new Silencio fan do a great job! What about the pump ? Is it silent ?

        1. Marco

          *does

          1. Aidan Moore

            Hi Marco,

            Yes. The pump is inaudible even with the case open. All in all it’s a very quiet closed loop cooling system.

            Aidan

  3. marco

    Hi Aidan
    Thanks for info.

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