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I've got the LF 360 v2 and I'm having the same problem. The pump is working but no RPM is reported to mainboard. It's connected to the pump header and the fans to the CPU fan header. The nature of a review cycle (while a product is relevant) typically dictates that there’s no means to realistically test for endurance or age. We can revisit in the future if needed, but that’s the only question mark left after the review process: Arctic’s pump design is new, something we’ll look at in our tear-down video coming up shortly, and a new design means we have no reference point for endurance and reliability. In general, liquid coolers outlive the usable life of the system, and potentially two systems, but those that fail do so in a much more visible or catastrophic fashion. Failures are overall rare, however, and that’s always important to note. We’ll send you to our Air vs. Liquid cooler content for more of an explanation on this front. The CPU and CPU OPT headers are not individually controlled. They are controlled together, but can report speeds individually. While it was fairly easy with previous generations of CPUs for coolers to keep the flagship i9 processor well under TJ max (the maximum temperature a CPU can sustain without throttling) in tough workloads, this is no longer realistically possible with the Core i9-13900K without extreme cooling (or enabling power limits). While in the past a CPU hitting its peak temperature was cause for concern, enthusiasts are going to have to learn to accept high temperatures as “normal” while running demanding workloads with Raptor Lake and Ryzen 7000 CPUs.
Some mechanical interference with surrounding components may appear. The fan will not be controllable by PWM.Should be available in Europe -- I'm pretty sure Arctic is a European company -- based in Germany maybe? The V1 has three fan connectors. Two of them have three pins, with the third pin missing, so only pins 1, 2 and 4 are there. The third connector--the one closest to the radiator, has all four pins.
Plus, our sophisticated cable management hides both the RGB and PWM cables of your radiator fans in the sleeving. I prefer Noctuas, specifically the NF-A12x25 for 120mm for noise/performance, and the Noctua iPPC fans in either 120 or 140mm and whatever speed choices they offer. But they can get pricey and you can easily pay more for fans than you did for your AIO.
Arctic’s Liquid Freezer II 360 ARGB will keep the CPU cool while running silently - even in the hottest of scenarios. It handled over 290W in our long-term testing, making it ideal for those who run demanding workloads. This is a superb cooler with pristine acoustics. You can’t go wrong pairing it with Intel’s i9-13900K. This shows the delta in height, measured in microns, from a calibrated 0-point. The A500’s box plot shows the largest range, illustrating the chaotic levelness that hurt its performance, while the Deepcool Assassin III and original Wraith coolers have some of the best levelness. The Arctic Liquid Freezer II averaged about 8-10 microns depth from the 0-point, with minimums and maximums at 2 microns and 48 microns. The Liquid Freezer II has a couple deep points in the coldplate, but is overall closer to the smooth end than the unlevel end. Installation & Mounting I separated the fans from the pump and connected the radiator fans to cpu fans and the cable coming from the LFII into the pump header. I am not getting any pump RPM value. I thought it may be because it could be a 3-pin “fan” but even still I should have RPM value. I have used that header with other pwm fans in the past and it read RPM no problem.
I run a similar setup as some here. I have a cooler master H500M and run an Arctic liquid freezer II 360 v2 with 6 Noctua NF-A12x25 fans in a pull/push configuration. Right now I have the pump lead from the arctic freezer going to the AIO 4 pin port on my Asus Maximus XII Formula board. I then have each of the 2 sets of 3 radiator fans strung together with a couple noctua fan splitters to plug each set of 3 into the cpu fan and cpu opt fan (NOT into the Arctic Freezer II’s integrated harness).The next test will be for the VRM fan. For this, we’re going to start with an overlay demonstrating the linear feet per minute flow, often called FPM or LPM, as measured with a hotwire anemometer at the edge of the chassis for the cooler. The measurement is taken at an angle toward the VRM heatsink. We measured at a few points and under a few conditions. I have one of their older 120 models (push pull) on an R7 1700 (non-x, but OCd to 3.8)- cools extremely well and is super quiet - I only hear it when 3D rendering (100% load for more than a few minutes). CPU: 5950x | Motherboard: x570 Dark | GPU: 6900Xt Red Devil Ultimate | RAM: 2x32 3733 14-18-18-36 | Power Supply: SuperFlower Leadex Titanium 1000w | Cooling: Triple 360 loop | Case: Lian Li O11 Dynamic | Other: 6x Noctua NF-F12 IPPC / 3x Noctua A12x25 Chromax Our next chart continues with the 3950X 200W load, but allows all the coolers to run at 100% fan speed during the test. This doesn’t move the needle much for Arctic, which seems to top-out in its efficiency at around 1200RPM rather than its maximum 1600RPM. The results were +/-1C as usual, but our average ended up at 50.9 degrees over ambient. That’s not enough of a change, so there’s room to reduce noise level without much loss of overall performance. At the 1610RPM speed, the Arctic cooler ran at 42.5dBA at the normal 20” distance. This puts it about equal in thermal performance to the NZXT Kraken X62 and X72, which run around 51-53dBA, or a perceived noise increase to the human ear of about 2x. Again, that’s perceived to the human ear, not acoustic power, which is a different scale. Either way, Arctic’s solution is significantly quieter at the same performance. The EVGA CLC 360 shows that we’re not limited by our test bench, but also that jet engine levels of noise are needed to drive the temperature down further. 3800X – 35dBA The illuminated P-fans are already mounted on the radiator from the factory. During the development of the new P-series fans, special emphasis was placed on a focused airflow and thus a high static pressure. The fans guarantee extremely efficient cooling, even with increased air resistance. Therefore, the P-series fans are particularly suitable for use on heatsinks and radiators.
It's 100% "Harness" speed on the V1 that is reported on only one of the fan connectors. It's not pump nor VRM. They don't have a sensor at all. Thermal imaging from our FLIR ONE Pro camera shows moderate heat soak around the radiator sides and within coolant tubing at 50% fan speed, while 100% fan speed shows good regulation and exchange of thermal load. Given that the Arctic Liquid Freezer II 280 runs so quietly, operating the unit with a good PWM curve should allow for aggressive fan speed without excess system noise.This one in the review looks really nice as well. I wish more manufacturers would stop making their products look like action figure toys. Hydro Series H100i v2, and couldn't be happier! This cooler is everything the Corsair was not...... FAReasier to install, MUCH quieter, and keeps my Ryzen 2700X 7-10 degrees cooler across the board then the Corsair. Plus, our sophisticated cable management hides the PWM cables of your radiator fans in the sleeving. I was wondering how good the fans would be as case fans over my silent wings 3 since they are so quiet.
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