Search the Community
Showing results for tags 'coolant temp'.
Hi Guys, I just built my first rig in a long time and back when I used to build rigs we never had water cooling. I have had a water cooled PC before, as the one that this replaces was an Alienware Aurua R7. That PC had a 120mm liquid cooling AIO installed and part of the reason I wanted to build my own was to get some cool RGB as well as make it quieter. The Alienware would spin up and sound liek a vaccuum cleaner under full CPU load, and when you put full graphics load on it the 2080ti from Dell also spins up super load (oddly it only has a single fan?). Anyway my new rig is as follows: - NZXT H150 Elite - AMD Ryzen 9 3900X - Corsair Force Series MP600 1TB - Corsair h115i Platinum 280mm RGB cooler mounted to the front as intake (fan RGB facing out) - Corsair Vengeance RGB Pro 32GB memory (2x16GB) - Stock case fans as exhast on back (12mm) and top (140mm) - Corsair Commander Pro connected to stock case fans - Four temp temp sensors in various areas of the case corners - Windows 10 Pro 1909 What I am confused about is exactly how these fans are supposed to be controlled because the case is always super quiet when I run iCUE and the fans are set to the Quiet mode. Which is exactly what I want, but what I don't understand is that when I run the CPU at full load using CPU-Z or Cinebench, the fans never really change speed. They just sit there not changing much, while my old Dell would spin up like crazy. Checking the CPU temps with Ryzen Master I can see that under full load the CPU is getting a little over 80 degrees, but according to iCUE the h115i cooler is not changing much in temp. The cooler sits about 30.30C degrees at idle and the CPU temp is in the very low 40's when doing nothing. I I leave CPU-Z running for a long time the cooler temp will rise a bit, but not much. Maybe 2-3C. Given that, since the cooler temp is not going up much, the fans really dont change in speed. If I create my own custom profile for the cooler and use the quiet mode it's at 30% speed at 31 degrees and goes up to 38% at 34C, but the cooler never really gets that high. I have had it running while posting this and my cooler is now at 33.90 degrees and CPU temp is at 81.59 degrees. But the thing is, if I spin up the fans to and pump to maximum, it does bring the coolant temp and CPU temps down a bit. So my question is, why is the stock fan profile not spinning the fans up much when the CPU is under load? It would seem in my old Dell the cooler fans spun up based on CPU load, but with the h115i they are tied to the cooler temp and I don't see any way to tied it to the CPU temp (the Ryzen 9 sensor does not show up in the list). I now have the fans running at full speed and the cooler temp is now dropping back down to the low 32's and the CPU temp is now 77C, so clearly it makes a difference. But the stock fan profile is not doing a good job of knowing when to spin up the fans? Also the case fans are not really spinning either. Now yesterday I was playing around with overclocking and the CPU was getting up to 90 degrees, but once again the coolant temp was not going up a whole lot, and hence the fans were not spinning. If I manually spin them up to full speed, then the temps on the CPU go down quite a bit. So, my specific questions are: 1. Why is there now way to tie the fan speed of the h115i to the CPU temps, so when I have it at full load they will be keeping it cool? Ryzen 9 is not an option in the drop down for a custom curve. 2. Why does the stock fan profile not really ramp up the speed until the cooler is at 44C, which is a temp my cooler just never seems to ever get close to? If it got that high, my CPU would be frying. 3. What controls the case fans I have attached to my Command Pro in the stock quiet mode profile? Are they attached to the h115 coolant temp, the temp probes I have installed or something else? They also cannot be tied to CPU temps either.