The EKWB EK-XLC Predator 240 Liquid Cooler Review
by E. Fylladitakis on December 15, 2015 9:00 AM EST- Posted in
- Cases/Cooling/PSUs
- AIO
- Water Cooling
- Liquid Cooling
- EKWB
Testing results, low fan speed (7 Volts)
| 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.
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shaolin95 - Thursday, December 17, 2015 - link
er no...its the top Air Cooler but no it does not "blow away almost all of these coolers" plus not everyone likes such huge thing on your build.I used to my tastes got refined and no longer like that huge chunk of metal there not to mention that its harder to clean between fins compared to a radiator.
stren - Thursday, December 17, 2015 - link
Yes using a lab grade setup like that is great for more accurate system measurements. It's damn hard to test radiators well after all - ask my buddy fast_fate about that. *But* a good amount of performance can be gained or lost from bow of the CPU block and how well it matches the CPU's IHS. One thing you failed to mention in your methodology is how the block was mounted to the heater plate. Which TIM was used? How many mounts did you do? Mounts can produce quite variable results. Typically a 1C variance might be seen in mounting one block to one CPU in one orientation. Different CPUs and orientations will produce a wider spread still. In addition measuring ambient air in is extremely hard to do well even if your sensors are world class. How many sensors do you use, how spread out are they, how far from the fans are they? Is there an intake manifold? Is the manifold restrictive? Is there any other airflow in the room? How much does the ambient change? What's the error in the system? How long do you log for, how many runs do you average etc etc?If you were to test CPU water blocks independently on a such a setup the results would be very different to those testing on a real motherboard/CPU. This is particularly true when a small difference in mount height can change mounting pressure and hence TIM thickness. Some block mounts bottom out rather than relying on a set torque to tighten and hence making your own mount will mean a difference in mounting pressure than a real motherboard/CPU combo.
In essence while you're testing *part* of the system very accurately, you're not testing the whole system accurately. While I applaud the effort to measure AIO's well, I think you'd do well to drop the lower power runs where the margin of error is > than the difference in the data in order to save time and also test with a CPU to try and see some impact of the mount on a real world system. Of course the latter can be frustrating to get the accuracy required. Taking data on ten water blocks accurately on one CPU can take me a month. So I can understand why you'd want to limit the variables, but it might be wise to mention that by limiting the variables in order to be more accurate you are also making the test less accurate by being a simulation of the real thing.
r4serei - Friday, December 18, 2015 - link
i'm lovin my 240. i've already expanded onto it with a block for my gpu and another rad. was surprisingly simple.r4serei - Wednesday, January 13, 2016 - link
EK has issued a recall for all revision 1.0 Predators due to a faulty O-ring. It's been corrected on revision 1.1 which has been released as of Jan 4th.alexrw - Saturday, January 30, 2016 - link
> the pressure triples for every increase of 3 dB(A)err, doubles ... actually almost doubles (the exact value when it exactly doubles is not 3dB but 10*log10(2)=3.0102999 dB, or conversely the ratio for exactly 3dB is not 2 but 10^(3/10)=1.99526)
file2man - Sunday, October 30, 2016 - link
I recently purchased the ekwb extreme 360 kit- it has a separate pump, reservoir, clear tubing for somwhere around $350 at microcenter. the pump is not variable speed like most other bought outside of kits and can only vary its speed by a fan controller. Im new at liquid cooling but I suspect hard tubing will in the longer term attract less sediment and is much preferred . Have not reached ek yet but not sure if I can use the 360 extreme kit fittings 13/10mm g1/4 for hard tubing literature says soft tubing is 9.5mm/12.7mm (3/8/1/2 inch). Any help is appreciated since is no way to email ek