Testing Results, Maximum Fan Speed

Our maximum speed testing is performed with both the fans and the pump of the kit powered via a 12V DC source. This input voltage should have the pump and fans matching the speed ratings of the manufacturer – however, the Rise Aurora fans were quite a bit slower than their 2500 RPM specification, spinning at 2420 RPM per our tachometer. Regardless, all three fans were consistent, which is what actually matters as it suggests a good quality control.

Average Thermal Resistance

Core Temperature, Constant Thermal Load (Max Fan Speed)

The thermal performance of the Alphacool Eisbaer Aurora 360 indicates that the cooler lands near the top of similar offerings, slightly bested only by the larger Arctic Cooling Freezer II 420. The average thermal resistance of 0.0697 °C/W just a tiny bit better than that of similarly sized and priced coolers, such as the Corsair H150i Elite and the Cougar Helor 360.

Fan Speed (12 Volts)

The three Rise Aurora fans that Alphacool supplies with the Eisbaer Aurora are powerful, giving the cooler an advantage on thermal performance but at the cost of acoustics. With all three fans running at their maximum speed, our dB(A) meter recorded 44.3 dB(A), one of the highest figures we have ever recorded while testing an AIO liquid cooler.

Noise level

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 1250 RPM for the Rise Aurora 120 mm fans. The pump was also connected to the same power source, functioning properly with this supply voltage.

Average Thermal Resistance

Core Temperature, Constant Thermal Load (Low Fan Speed)

With an average thermal permittance of 0.0784 °C/W, the Alphacool Eisbaer Aurora 360 initially appears to be one of the best AIO liquid coolers that ever went through our labs, matching the performance of the largest AIO cooler, the Arctic Cooling Freezer II 420 and outpacing everything else. This excitement however is short-lived when one remembers that the Rise Aurora fans are quite a bit faster than what most of the competition currently offers.

Fan Speed (7 Volts)

The noise output of the Alphacool Eisbaer Aurora 360 under these operating conditions is 35.9 dB(A), a figure that is clearly audible. It would probably be comfortable for continuous use in many usage scenarios but it is not ideal for environments where the acoustics are vital, as it would create a continuous source of white noise. The pump itself is entirely silent, without any electromechanical noise coming out of it at any speed.

Noise level

Thermal Resistance VS Sound Pressure Level

During our thermal resistance vs. sound pressure level test, we maintain a steady 100W thermal load and assess the overall performance of the coolers by taking multiple temperature and sound pressure level readings within the operating range of the stock cooling fans. The result is a graph that depicts the absolute thermal resistance of the cooler in comparison to the noise generated. For both the sound pressure level and absolute thermal resistance readings, lower figures are better.

This graph reveals that the Alphacool Eisbaer Aurora 360 does outperform most of the competition, yet by a much smaller margin than our thermal testing originally anticipated. The high noise levels of the fans shift the line upwards, closing the gap of thermal performance per sound pressure level. The Corsair H150i Elite even manages to partially outpace the Eisbaer Aurora 360, offering the same thermal performance at lower noise levels.

Testing Methodology Final Words & Conclusion
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  • PeachNCream - Tuesday, August 16, 2022 - link

    Interesting overreaction you're having there.
  • philehidiot - Wednesday, August 17, 2022 - link

    Overreaction? Who me or him? Tell me damnit! I NEED TO KNOW!

    /hysterical screeching
  • Silvas - Friday, August 19, 2022 - link

    Are you feeling better about yourself now that you've pontificated about how stupid and 'plant-like' the 'idiots' who 'prodigiously throw away' month on these 'bling toys'?
    Psst there are better ways to feel better about yourself than putting others down. Putting others down is a momentary boost; what you should be seeking is a long term solution to the root cause, which in your case I suspect would best come from seeking therapy.
  • PeachNCream - Friday, August 19, 2022 - link

    This is pretty much exactly what I mean about simply responding to external stimulus in a predictable, face-toward-light manner. Plant identified.
  • philehidiot - Monday, August 22, 2022 - link

    Nah, you're just getting the response you know you deserve because you spouted arrogant and invalid nonsense and you're twisting it to "you're all so predictable" so you can feel superior and deny reality.


    Whinging about the effect being so predictable does make you superior, it just means you knew the response you'd get and either were trying to provoke because you're bored and want attention, or you're just too unoriginal to accomplish anything more interesting / productive.

    Either way, it's a little sad when you're resorting to petty abuse rather than defending your "case".

    Now if you'll excuse me, I need to go and water myself.
  • PeachNCream - Monday, August 22, 2022 - link

    It's been a few days and you're still upset enough to text wall over a hobbyist computer component.
  • philehidiot - Wednesday, August 24, 2022 - link

    I've just had some tricky dumps. But you're still replying because you *need* the last word. It's that ego problem again, isn't it?
  • PeachNCream - Thursday, August 25, 2022 - link

    A shorter comment this time! Excellent!

    Sooooo...are you going to actually discuss why a pointless product like this is supposed to have a point at this stage or will you continue to live up to your self-assigned UID?
  • Stuka87 - Tuesday, August 16, 2022 - link

    Not a fan of how the cooler lines come out of the top. Its technically better for flow to not have an immediate 90 degree turn (like corsair and such have). But they are going to get bent anyway because the hoses are likely to hit the side panel depending on case depth.
  • Oxford Guy - Sunday, August 21, 2022 - link

    I should start a gaming supply company. I, too, could come up with boneheaded decisions like using fans that aren't designed for radiators. Apparently, failure is the path to success.

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