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. According to the company’s specifications, the Squama fans included with the Eskimo Junior 36 should have a rotational speed of 2000 RPM. Our tachometer indicated that the fans were rotating at an average speed of 1960 RPM, very close to their rated specifications.

Average Thermal Resistance

Core Temperature, Constant Thermal Load (Max Fan Speed)

The Geometric Future Eskimo Junior 36 demonstrates commendable performance across various loads, with an average thermal resistance of 0.0734 °C/W at its maximum fan speed of 1960 RPM. This figure, while slightly higher than many other 360 mm coolers, is noteworthy considering the relatively low maximum speed of the supplied fans. The cooler appears to be performing very well when the loads are high but loses ground when the load is very low.

Fan Speed (12 Volts)

The Eskimo Junior 36 maintains a sound pressure level (SPL) of 40.9 dB(A) at full fan speed, one of the lowest figures amongst the 360 mm AIO coolers in our database. That is not a quiet figure of course – the cooler will be clearly audible even from a distance – but we consider it tolerable for typical gaming/workstation use. 360 mm coolers typically do not run their fans at maximum speed as they can easily cope with the thermal load of CPUs without having to. It is noteworthy to mention that the pump, rated at 30 dB(A) by the manufacturer, is practically inaudible, meaning that nearly all of the noise is aerodynamic noise generated by the three cooling fans.

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. At this setting, the 120 mm Squama fans of the Eskimo Junior 36 rotate at 1000 RPM.

Average Thermal Resistance

Core Temperature, Constant Thermal Load (Low Fan Speed)

The Geometric Future Eskimo Junior 36, when operating at half speed (1000 RPM for the fans), demonstrates fair cooling efficiency with an average thermal resistance of 0.0829 °C/W. Once again, its thermal performance is significantly improved at higher loads, with the cooler falling behind when the loads are low to very low.

Fan Speed (7 Volts)

The acoustic performance of the Geometric Future Eskimo Junior 36 cooler is quite good when its fans are operating at half speed. At 1000 RPM the cooler maintains a relatively low noise level of 35.2 dB(A), making it a quieter cooling solution compared to many other models that are running their fans at higher speeds.

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.

The Geometric Future Eskimo Junior 36, while falling slightly behind some similar designs in its category, maintains a competitive stance in the market. It offers good thermal performance that is remarkably linear and shows minimal impact from airflow changes. This performance profile indicates that the Eskimo Junior 36 is a solid choice for those prioritizing scenarios where lower fan speeds are desirable. On the other hand, its thermal performance does not improve significantly at higher airflows, limiting its maximum potential.

Testing Methodology Final Words & Conclusion
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  • PeachNCream - Saturday, February 10, 2024 - link

    Using possibly charged terms to brand a product demonstrates a lack of research on the part of the company. EK, for years, named their water coolers "Supremacy" and the Europeans behind it failed to note the problematic ties that has to racism in the United States. They only recently rebranded, if I'm not mistaken (honestly its too deep into the PC industry for me to be bothered using a search engine to find out), but it is sometimes difficult for the Chinese to understand the cultural implications of brand choices just as much as western companies have oft caused brand errors by attempting to incorporate Asian themes in their own products.
  • TheinsanegamerN - Wednesday, February 14, 2024 - link

    The term "offensive" is offensive. Why are you so intolerant of the millions who have died in offensive military campaigns throughout human history?
  • GhostOfAnand - Thursday, February 15, 2024 - link

    Yes, words don't denote anything, and terms don't connote anything. Congratulations on your *big* discovery. /s

    P.S. I have no interest to continue. Please reflect on what aspect of my initial comment triggered you and what that says about how you perceive the world and engage with those around you.

    For example, the former Czech Republic is now referred to Czechia in English, as is their wish. It sounds weird to me, but I respect them and so be it. Turkey is now Türkiye in English. Côte d'Ivoire is what the British used to call Ivory Coast, but their colonial French name is how they wish to be referred to in English. More recently India wants to be referred as Bharat in English from the Sanskrit.

    All this is just a small slice of human language, its interaction with human culture, and human psychology.
  • SanX - Friday, February 9, 2024 - link

    Any good suggestions for the watercooler capable to withstand combined power 800-1500watts of future Turin SP5 socket processors and next generation videocards? Where are old convection cooling desighns without fans which turn our computers into wind turbins or bitcoin mining factories.
  • meacupla - Friday, February 9, 2024 - link

    Yeah, go full custom, and have at least 2x360 or 2x280 radiators, and use noctua sterrox fans.
  • SanX - Saturday, February 10, 2024 - link

    I think you are right if you are confident with your custom design but Linus Tech guy kind of discouraged me from doing that despite of his unlimited budget with that. He made one for Genoa and failed miserably as his cooler leaked water. I will try SilverStone XE360-SP5 cooler which looks very weak and if it will also fail to cool below 52C like fail all air coolers with such power constraints i will be forced to invent the bicycle myself. Thanks for pointing on Noctua sterrox fans
  • SanX - Sunday, February 11, 2024 - link

    52C is throttling temperature. Yes, as low as this. Any reference on good high power custom designs and the source of reliable parts for it?
  • meacupla - Sunday, February 11, 2024 - link

    You should go ask somewhere like Level1tech forums, where there is a larger base of EPYC users.
  • back2future - Monday, February 12, 2024 - link

    [ just got aware of that most reviews for/with novelty hardware is about initial conditions review, but rare later reviews on long term durability or altered parameters (or e.g. MTBF/MTTF (MTTR or MTTA are less meaningful with this type of technical devices) verification) (?) ]
  • TheinsanegamerN - Wednesday, February 14, 2024 - link

    Linus also has lost two entire data racks and major backups because he doesn't know how modern server storage arrays work.

    In case its not spelled out, he's a bit of a derp. Take what LTT does with a morton factory of salt.

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