It's so quiet that when my friend entered the room and saw the system, he commented on how quiet it runs, and he wouldn't believe me when I told him that Prime 95 was running for the past hour at smallest FFTs (maximum heat generation).
Coolant temperature full#
Putting all 12 cores of the Ryzen 9 3900X under full load does practically nothing to raise noise levels, even though the fans for the top radiator and intake enter duty. Idle, it isn’t audible over the noise floor of the room, unless you get very intimate with the case. Its a bit of a shame that we didn't achieve fully passive desktop use, but the Noctua NF-A12x25’s are totally inaudible at 750 RPM on a radiator anyway, especially when pointed away from the user.Īs you can see, the system is extremely quiet. Turning the side intake to always run kept the loop a hair under 30 degrees most of the time during normal desktop use. I also set the side intake to always spin, as I found that totally passive, the loop would still warm up to 30 degrees idle, making the system swing back and forth between passive and idle quite often. The first thing I noticed was that the Noctua fans ran much quieter on radiators than as a free intake at the bottom of the case, so I dropped the intake fans’ speed by 10 percent across the board, which seemed to match the radiator’s fans for noise levels. But he, just in case, you know?Īfter all that, a little more finetuning was required. At 30 ☌ they could start spinning, and by a fluid temperature of 50 ☌ I wanted them to run at full speed, though they should never need to reach this point. I then set all the fans to stop spinning when the fluid temperature is below 30 ☌, which meant I couldn’t connect any of the fans to the CPU fan header, as Asus doesn’t allow CPU fans to stop entirely.
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