Testing results, low fan speed (7 Volts)

Fan Speed (7 Volts)

Noise level

Average thermal resistance, 60 W to 340 W

Core Temperature, Constant Thermal Load (Max Fan Speed)

At first sight, the thermal performance of EK-XLC Predator 240 with a supply of 7 Volts does not appear to be stellar. With an average thermal resistance of 0.0958 °C/W, it falls to the seventh place of the chart and appears at a disadvantage against most other dual fan coolers under heavy loads. The other coolers that are directly on par with its thermal performance are mainly older designs, such as the Corsair H100i and the first revision of SilverStone's TD02. More recent designs, such as the Corsair H100i GTX, and models with dual 140 mm fan radiators, appear to have a notable thermal performance advantage.

The catch is that, under these operating conditions, the EK-XLC Predator 240 is the quietest AIO cooler that we have ever tested to this date. Our instruments recorded just 35.1 dB(A), a barely audible figure that combats even the best low-noise CPU cooler designs. The coolers that displayed significantly greater thermal performance are also much louder. As the dB(A) scale is logarithmic, the pressure triples for every increase of 3 dB(A), so the actual difference in comparison to the top performers is vast. 

Testing results, maximum fan speed (12 Volts) Final Words & Conclusion
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  • thestryker - Tuesday, December 15, 2015 - link

    I greatly appreciate the review on this, and it seems to match what I've seen in other places so that's always good. Going over the little pieces is what I've come to appreciate most about AT reviews. Talking about pump noise is also helpful as it seems like the asetek/coolit ones all seem to have issues here.

    For me at least this cooler is worth it simply to not give money to asetek. It would be nice if AnandTech could do a quick writeup or something on which AIOs are using the asetek design, and in turn giving them license money. The patent they've been allowed to use as a weapon is pretty absurd and has put us in a sad state for AIO development.
  • iamkyle - Tuesday, December 15, 2015 - link

    The use of a DDC was an interesting choice...
  • Kid98 - Tuesday, December 15, 2015 - link

    Every 3dB's is a doubling of power....

    Kid
  • DanNeely - Tuesday, December 15, 2015 - link

    Good catch.

    While we're nitpicking the dB discussion though, the human ear has a log response curve; 10 dB is only heard as roughly twice as loud so the 12.3dB spread between the best and worst coolers is only a bit more than twice as loud even though the sound is roughly 17 times as intense.
  • Valkyrierie - Tuesday, December 15, 2015 - link

    The third fan header is meant to be used in EK-XLC Predator 360.

    EK-XLC 240 and 360 share the same power board despite 360 having an additional 120mm fan - Most likely, they stuck to one single board for both units to cut costs.
  • initialised - Tuesday, December 15, 2015 - link

    No mention of the DDC pump or it's specs, power consumption, flow rate...
  • wolfemane - Tuesday, December 15, 2015 - link

    I don't think power is really all that important with this kit. I'm currently using a koolance 450s running at settings for 26w @ 12v roughly doing 3.2gpm with my custom build. I did before and after power draw checks with an at wall kill-o-watt (I know it's not accurate, but it gives a general feel of whT your pulling) and I only saw a power increase of about 15w. Give or take a few watts. Flow rate is a little higher in use as well but not by much. So unless your really desperate to save on power due to over taxing a low end psu, the power draw of the pump/fans is going to be minimal on an AIO kit like this.

    And since the pump isn't an adjustable pump why would flow matter? It's traveling over one surface with a fairly large rad, as long as the kit is designed with decent flow and the chip is cooling, why worry about this uncontrollable spec?

    With these AIO kits I'd be more concerned with how its performance stands up to competition in regards to actual cooling and noise. Power, flow, pump specs just seem irrelevant. If this was a custom built system then I could see more attention needed for these areas.

    I thought it was a great review, I love EKWB and have used them since early Athlon. Nice to see a semi modifiable AIO from them. I even think the price fits the possibility seeing how there is an option for customization compared to other AIOs.
  • DanNeely - Wednesday, December 16, 2015 - link

    I'm surprised the pump's not adjustable. I can adjust my swiftech branded DDC pump using the mobo's fan controller software; it's a bit annoying since it's RPM curve isn't linear; but I was able to tune it to run at ~2/3rds speed (at most 1 or 2 C hotter temps but much quieter operation).
  • londiste - Wednesday, December 16, 2015 - link

    https://shop.ekwb.com/ek-xlc-predator-240
    Pump type: Laing DDC3.1 6W
    that is specific enough to find the rest of the specs.
  • wolfemane - Tuesday, December 15, 2015 - link

    Where can we get a set of anandtech labeled tools? Would love to add those to my tech tool box!!

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