In setting fan speeds, this is much simpler as we can define the PWM control of the fan to be exactly 100% or exactly 50%, which is a precise measurement of the fan RPM with very minimal average fluctuation over time. Manually applying all of the power possible to the fans for this test, we found them to top out at 2380 RPM, which falls into the 2400 RPM max that the specifications mentioned. At this time, we take on another level of noise production, where the meter showed us 70 dB of noise coming from the exhaust side of the radiator, at a foot away! Final Thoughts To make it even better, the depth of control and all of the options at hand using iCUE is astounding. What makes it a step above is the inclusion of motherboard and GPU lighting control! Anything RGB can be controlled with iCUE, so you no longer have to mess with multiple software suites, and there is the fact that the flow of colors in certain modes is synced so much better than was possible for us before Corsair stepped up their game! 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.

NOTE: Your cooler pump head should have thermal paste already applied. If you want to use your own thermal paste, make sure you thoroughly clean the cold plate of the pump head and the integrated heat spreader (IHS) of your processor with isopropyl alcohol and lint-free cloth. Processors have become far more powerful over recent years with more cores and better efficiencies throughout the manufacturing process. Still, AMD and Intel are in a constant struggle against heat output in the attempt to extract as much performance from internal components as possible. This is where AIO liquid coolers come into play.

Currently the radiator is set to top intake, with the bottom case fans also being intake and the sides being exhaust. I originally had the radiator set to exhaust with bottom/sides intake, but tried reversing it in hopes of remedying the issue. 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. The issue with AIO coolers, especially premium solutions such as this, is price. They're considerably more expensive than air coolers and even some other PC components. While it is a little pricey, you are getting a very good cooler for even the most powerful processors from AMD and Intel. When it comes to thermal resistance, Corsair’s latest AIO cooler initially seems to be slightly outperforming all of the 360 mm coolers that we have tested to this date. The average thermal resistance of 0.0808 °C/W is almost identical to the figures we received from the recently released NZXT X73, with Corsair’s MagLev fans giving the H150i Elite Capellix a small advantage in terms of acoustics. Once your cooler is installed to your motherboard, it is time to connect the fans and pump to the iCUE Commander CORE.

over ambient at idle seems too high for me. It seems like you have the radiator as top exhaust. So bottom and side are intake? This seems like too much to be a airflow issue, but take of the large side glass off at idle and see what happens.

Three ML 120 RGB fans are included, featuring eight RGB LEDs each and magnetic levitation for their bearings. These fans have PWM control, provide up to 75 CFM of airflow, 4.2 mm-H2O of pressure, and genertate up to 37 dBA of sound. Each fan has two cables: one for the fan power and another for the RGB controls.

I have similar build as OP. 5900x ryzen 9 with RTX 3090 MSI suprim. At idle I get around 39 deg celsius and just under 50 deg celsius for the pump temp under gaming load. The radiator is minimal and sleek, with the only adornment being the Corsair logo. Other than the small tanks at the ends of the radiator, it hardly takes up any additional space compared to the three fans. The fin spacing is the common 20 per inch, making for a good balance between cooling performance and minimal air restriction.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 gpu will certainly heat up the inside so the Cyberpunk results don’t surprise me. The prolonged time after gaming at high temps suggests environmental heat, but can also be a restricted cooler. How does the 48C compare to something like the motherboard sensor or any other internal temp data?