Testing Results, Low Fan Speed

Using a PWM voltage regulator, we reduced the speed of the fans manually down to half their rated speed, which is 800 RPM. The pump was also connected on the same power source, functioning properly at this low speed setting.

Average Thermal Resistance

Core Temperature, Constant Thermal Load (Low Fan Speed)

The Corsair H150i Pro RGB is doing much better in this test, managing to almost match the thermal performance of larger (and much more expensive) liquid coolers. Both the low and high load thermal performance of the H150i Pro RGB are exceptional, outpacing most of the smaller AIO cooler implementations. The average thermal resistance is 0.0837 °C/W, hardly worse than the figures we recorded with the cooler's fans running at maximum speed.

Fan Speed (7 Volts)

Under these operating conditions, we recorded a sound pressure reading of just 33.1 dB(A), a very low figure for any kind of CPU cooler. The H150i Pro RGB will virtually be imperceptible with its fans running at 800 RPM inside a typical room. A slight humming sound will be perceptible in a quiet environment but its intensity is very low and certainly tolerable by even the most sensitive-eared users.

Noise level

Testing Results, Maximum Fan Speed Thermal Resistance VS Sound Pressure Level
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  • qlum - Thursday, August 16, 2018 - link

    looking at this review I see the nepton 280l still performs well enough. I replaced the fans on mine with corsair ml ones I at least know that did not have any negative impact on thermals in my case.
  • oRAirwolf - Thursday, August 16, 2018 - link

    I would love too see a review of the Alphacool Eisbaer 420mm.
  • WatcherCK - Thursday, August 16, 2018 - link

    I wonder if/when Corsair will star producing motherboards or graphics cards, two OEM products they dont appear to manufacture.... given their (to my untrained eye) high production quality their end product would be good kit... (and yea I figure motherboards and graphics cards are the most complex components to create after the CPU/GPU...) and would give them full component integration :)
  • Hxx - Thursday, August 16, 2018 - link

    as much as i love corsair products but for the love of God if youre willing to spend $170 then why not get EKs aluminum kit or save up for a copper liquid cooling system. 170 seems such a waste for an aio. these should be 60/70 at most $100 for the more sophisticated ones
  • Oxford Guy - Thursday, August 16, 2018 - link

    I don't think you've kept up with inflation. $60–70 isn't realistic at all.
  • Stuka87 - Friday, August 17, 2018 - link

    1: An AIO is super simple, plug and play.
    2: You cannot build a custom loop for anywhere close to $170.
    3: Custom loops require maintenance. An AIO you install it, and then let it do its thing for the next several years.
  • Allan_Hundeboll - Monday, July 20, 2020 - link

    Custom loops don't need a lot of maintenance.
    I purchased a diy asetek water chill about 20 years ago. I have replaced the fans and the water lock and 2 years ago the pump died. I top up the water roughly every 2nd year and have change the water 4-5 times during the systems impressive lifetime.
    Definitely the best Pc investment I ever made!
  • EGA999 - Friday, August 17, 2018 - link

    My new build has an 8086K cooled by a Noctua NH-D15. All 5 case fans are Noctua. 8086K is OC'd to 5.0 MHz - all cores - at 1.280 Vcore. Idles at 33c. Prime95 stable for 1 hour - never over 85c. Who needs an AIO?
  • vMax65 - Friday, August 17, 2018 - link

    My 8700K overclocked to 5GHz at 1.3v does 28 to 30 Degrees in Idle (Living in UK) and does not exceed 80 degrees in Prime95... I am using the Corsair H150i Pro...Why do people use AIO's? Many reasons and for me having tried the Noctua in the past was how difficult it was to get at things when making changes and having something that heavy hanging of the CPU just wasn't for me. The H150i Pro is also super quiet and does a stellar job of cooling a overclocked CPU with minimum fuss.
  • vMax65 - Friday, August 17, 2018 - link

    And my lowest temp at idle today is 25 degrees!!!!

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