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. A) it would greatly benefit from upgraded high static pressure fans and/or a push/pull fan configuration As Cinebench R23’s multi-core benchmark will push coolers to their limits, it’s also a great test for recording the worst-case scenario of fan noise levels. Here the results are a bit different than above, with the Liquid Freezer II providing the second quietest performance of all the coolers we’ve tested. Only Thermalright’s single-fan low-profile AXP120-X67 air cooler is quieter, although that cooler is the worst performer in the previous test.

Edit: and yes, similar to OP, I am OCD and need to have every fan in my case match (noctua for me). 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 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.Small fans have the reputation of being particularly loud and not very durable; that’s why we set out to develop a quiet, sturdy diagonal fan especially for the Liquid Freezer II. We’re 100% convinced that this 40 mm fan is just as durable as our other case fans. If the fan doesn’t live up to our claims, our customer service team will send you a replacement free of charge (without you having to replace the entire unit).

In addition to testing Cinebench without power limits enforced, we’ll also be showing results when the CPU’s power consumption is limited to a more reasonable 200W. We’ll also show results at 125W for those who prefer whisper-quiet cooling, at the cost of some performance. For both of these results, we’ll show traditional delta over ambient temperature results. I just hooked up one of my Noctua 3000 RPM fans and plugged it into an empty harness port. It reported 2700 RPM (from the Arctic fan). The next is that this AIO actually concerns itself with cooling the motherboard VRMs and not just the CPU. Unlike most, the Liquid Freezer II 360 comes with a secondary (or to be accurate quaternary) cooling fan that actively cools your motherboard’s VRM heatsink(s). Yes, this is not the first to do so, but it is very rare. The vast, vast majority of AIOs do not.

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. 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. Modern AMD & Intel CPUs are designed to run fairly hot without any problems– up to 95 degrees Celsius for AMD Ryzen 7000 CPUs, and up to 100 degrees C for Intel’s Core i9-13900K. Similar behavior has been standard in laptops for years due to cooling limitations in cramped chassis.

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.Installed this about 2 months ago. Quietest AIO I ever used all why keeping temps lower than my Kraken X72. 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 Yes it’s Rev 2. I recognized it when watching Gamer’s Nexus disassemble video. Mine is like the second unit they got from Arctic. And now I confirmed it by looking in the box.