Instead of fans connecting directly to the pump, we now get an iCUE Commander Core, which not only offers fan and pump speed control but also RGB control for both the pump as well as the eight RGB LEDs in each of the ML120 Series fans that ship in the box. Corsair claims extreme performance, a Zero RPM mode, split flow copper cold plate, a low-noise centrifugal pump, various sized radiators in the series, and is easy to install. Everyone seems to be making all-in-one liquid CPU coolers, and Corsair has been in the business for many years now. Most AIO solutions make use of Asetek's pump and AIO design, including the Corsair H150i Elite Capellix. It's almost identical to the Corsair H150i Elite LCD, aside from a few notable differences (namely that display). Are these liquid temperatures normal? Or perhaps the 5900x just runs hot and this is a sign that the coolant is doing its job? Also, setting to a decibel 'value' also isn't entirely accurate and can leave a larger range for operational limits. Example, there might actually be a variation of +/-300 RPM where the measurable difference of a single decibel is seen, but 300 RPM is actually a significant difference in the amount of airflow being moved. 1200 RPM and 1500 RPM actually end up performing quite differently. It becomes difficult to replicate test runs without variables based on decibel levels alone as the same measurement of 35dB for one test can easily fall outside of acceptable deviation. Setting a fan curve in CAM that mirrors iCUE's Balanced preset, my liquid temps now sit at 29 C idle and get up to 35 C max under load after an extended Cyberpunk session. This is much more in line with what I expected. CPU temps have also gone down about 10 C across the board, now idling in the low 30s and 40s while barely going over 70 under load (mostly stayed in the 60s while gaming). 50% fan speed will peg the liquid at 35 C, though if I opt for something more silent like 30% fan speed, the liquid still only reaches about 38 C under load.

The average thermal resistance of 0.0704 °C/W is impressive but users need to keep in mind that this performance comes with the fans rotating at their maximum speed. With the powerful fans of the H150i Elite Capellix, this results to a sound pressure level of 43 dB(A), a relatively high figure for a CPU cooler.

Once your cooler is installed to your motherboard, it is time to connect the fans and pump to the iCUE Commander CORE.

The Corsair iCUE H150i ELITE CAPELLIX liquid CPU cooler provides extreme performance and flashy RGB light shows. It sports a graceful design using a slender 360mm radiator paired with three 120x25mm magnetic levitation RGB fans. The base uses a split-flow copper cold plate with 128 micro-skived fins per inch. Skiving provides excellent thermal transfer and having such a high density will provide a lot of cooling performance. This is actually the second Elite Capellix AIO I've gone through; I returned the first due to a noisy pump, though it also had high liquid temperatures as well. Ambient temperature is ~22 C, it's winter time and in a basement. From a cold boot, the coolant starts at 25 C and constantly creeps up from there. I've tried setting the radiator fans to both exhaust and intake which didn't seem to make much of a difference. I've repasted this CPU about five times now as well. If you try to update the firmware of your iCUE Elite Capellix liquid CPU cooler and the update fails, it could be an issue caused by RGB motherboard software, such as Gigabyte RGB Fusion. To fix this issue, try the following steps. This seems abnormally high, as I also have an NZXT Kraken Z63 280 mm AIO attached to my 4790K in my old build and the liquid temperatures stay sub to low-30s on a similar fan curve to the Balanced preset. I'm not sure whether Corsair is using a different type of coolant that heats up easier. On the Balanced preset, my CPU temps are pretty normal in the 30s - 40s while performing mundane tasks with occasional spikes to the 50s/60s. On my custom relaxed preset, it idles closer to the high 40s once the coolant heats up. It seems like these fans aren't very efficient at cooling the radiator, as I have to run them at max speed for 10 minutes or so to get the coolant temps down to the low 30s.Support for the iCUE H150i Elite Capellix covers all of the current processors! AM4, sTR4, and sTRX4 are supported out of the box for AMD, while on the Intel side, there are 115X, 1200, and 2011(V3)/2066 support. The last bit in the chart covers the five-year warranty. The specifications we have were taken from the reviewer's guide, and it covers most of what you will need to know. We are now dealing with the CW-9060048-WW as the model number to the iCUE H150i Elite Capellix cooler, which boasts of low noise emanating from the pump, where Corsair says it is less than 20 dB(A), measured from a meter away. As Corsair calls it, the pump harness is to take software settings and apply it to the three PWM fans included in the box.

The Corsair iCUE software worked perfectly for controlling the fan speeds and RGB lighting of everything, while also showing the pump RPM. Another nice feature is the included iCUE Commander CORE can readily accept up to three more RGB fans. Installation is a breeze, as everything is labeled very clearly and supports basically every AMD and Intel processor released in roughly the last decade.How does this compare your internal case or room temps? Most people will idle about 4-7C above the room temp, but this is very case and power level specific. Someone with a TR on High Performance in a glass box is going to be quite high, while an old Sandy Bridge that drops to 0.60v and stays there will be quite low. This seems to be where you are losing ground. If another unit received power when on the same SATA connection, your Elite Capellix may be defective.