Joined in 2023 
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Do I need to get the RGB Fan LED Hub now, and change up all my wiring, or is my pump actually defective, and I need to get a new one? This is great in concept, except that the reality is that not every cooler manages to reach the same dB level at peak operation or lowest noise levels as every other cooler. Some coolers are not seen to operate at 35 or 40dB while others easily exceed it. These same coolers in comparison also Here we can see the micro-USB port used to allow the H150i RGB Pro XT to communicate to the computer. One end of the included USB cable plugs into the pump and the other into an available USB 2.0 header on the motherboard. I have also tried these profiles, and have the same result ... only the RAM and keyboard light up ... none of my QL's (on the H150i Elite, and also on a separate Lighting Node Core light up). I have: Using a PWM voltage regulator, we reduced the speed of the fans manually down to half their rated speed. At this setting, the 120 mm MagLev fans of the H150i Elite Capellix rotate at 1220 RPM. Since the pump’s speed cannot be controlled directly, we had the Commander CORE module attached to a PC and set the pump to operate in its “Quiet” mode while testing.
Corsair Hydro Series H150i PRO RGB AIO Liquid CPU Cooler Corsair Hydro Series H150i PRO RGB AIO Liquid CPU Cooler
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. The very latest Cyberpunk profiles work brilliantly on everything. The older profiles - some work, some dont (eg Nuclear, Titanium, Brimstone). iCue crashes on import for some of them. For others (eg Cobalt), it half worked and then I copied/pasted the lighting effects to the other devices - then the whole profile worked. I cant copy and paste the effects in other profiles thought Alex Krastev has updated a big part of his profiles to be compatible with all the latest Corsair hardware. Search for his update #3.Using the iCUE software, it can allow the fans and water pump to run at different speeds depending on the selected mode. There are four modes: Quiet, Balanced, Extreme, and Zero RPM mode. Each mode has their own fan profiles optimized for silence or performance. Zero RPM mode will always keep the water pump running to prevent the CPU from overheating. At the same time, the fans remain off until the coolant temperature reaches 45C. Are these liquid temperatures normal? Or perhaps the 5900x just runs hot and this is a sign that the coolant is doing its job? I am thinking of moving the 3 xML's and 1 x QL to the CoCo (you mentioned that I can mix and match fan types on the CoCo/H150i Elite). I would then put 6 x QL's on the LNC connected to the CoPro. I have the CoCo on one internal Mobo USB header, and the CoPro on another. The LNC connects to the CoPro. I have a spare USB header on the CoPro, so could plug the CoCo into that (?). 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.
Corsair iCUE H150i RGB PRO XT CPU Cooler Review Corsair iCUE H150i RGB PRO XT CPU Cooler Review
x ML120 RGB's (these are the ones that came with the H150i - I have them in push/pull on the radiator)
The sound of silence.
I tried switching the 3 pin connector from the pump to AIO_PUMP and CPU_OPT header. PC won't start due to CPU Fan error in both cases, but fans and pump continued to flash red and fans are spinning. 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. Taking a closer look at the water pump, the surface is mainly glossy with the Corsair logo placed in the center. The logo and the white LED ring around the logo do illuminate when the pump is powered on. Both the logo and LED ring are RGB capable. These ML Series PWM 120mm fans are the same fans from the previous H150i Pro RGB liquid CPU cooler. On the H150i RGB Pro XT, the unit allows the fans to spin up to their full 2400 RPM. On the H150i Pro RGB, they were limited to a maximum of 1600 RPM since it was built towards silence. Even at 2400 RPM, the fans still produce a respectable maximum airflow of 75 CFM at a 37 dBA.
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