edgetrading
Bronze Level Poster
I received my new PCS machine yesterday.
It has (sorry, but I can't seem to find post spec to forums for my completed order):
- 3950X CPU
- Asus TUF B550
- Noctua U14S CPU cooler
- Meshify C case.
I have installed Ubunto 20.04 on it.
The Noctua fans have a reputation for being quiet. Or if the sounds are loud, then they aren't annoying and are of low tone. That is a consistent feature of all reviews.
Problem 1: In the bios, when experimenting with the fan settings, I set the CPU fan speed to 100%. It is louder, as expected. But it isn't a loud consistent hum. It has some sort of pulsating/oscillating rattle/buzz as well. It takes a second or two to go through each cycle. Is this expected? Given all the reviews that I've seen, I was not expecting any sort of rattle/buzz pulsating noise. My old PC does not have any sort of buzzing or rattling when the fans hit 100%
Problem 2: When idle in Ubuntu, the CPU fan keeps speeding up and down. I can hear it speeding up and down, every few seconds, which is annoying as during a particular speed it produces a slightly high-pitched wine. During this time, using `sensors`, I see the CPU temperature go from around 33C to 52C and back. So I suppose the CPU fan is responding to the CPU temperature. However, the computer is not really doing anything at that point. So I would expect it to have more consistent behaviour.
I went into the BIOS and let it automatically optimise the fans. Using that setting did not really help.
I also tried silent mode. It sounded really quiet during silent mode,but the fan still revved up and down every few seconds.
What could I try to resolve these problems?
It has (sorry, but I can't seem to find post spec to forums for my completed order):
- 3950X CPU
- Asus TUF B550
- Noctua U14S CPU cooler
- Meshify C case.
I have installed Ubunto 20.04 on it.
The Noctua fans have a reputation for being quiet. Or if the sounds are loud, then they aren't annoying and are of low tone. That is a consistent feature of all reviews.
Problem 1: In the bios, when experimenting with the fan settings, I set the CPU fan speed to 100%. It is louder, as expected. But it isn't a loud consistent hum. It has some sort of pulsating/oscillating rattle/buzz as well. It takes a second or two to go through each cycle. Is this expected? Given all the reviews that I've seen, I was not expecting any sort of rattle/buzz pulsating noise. My old PC does not have any sort of buzzing or rattling when the fans hit 100%
Problem 2: When idle in Ubuntu, the CPU fan keeps speeding up and down. I can hear it speeding up and down, every few seconds, which is annoying as during a particular speed it produces a slightly high-pitched wine. During this time, using `sensors`, I see the CPU temperature go from around 33C to 52C and back. So I suppose the CPU fan is responding to the CPU temperature. However, the computer is not really doing anything at that point. So I would expect it to have more consistent behaviour.
I went into the BIOS and let it automatically optimise the fans. Using that setting did not really help.
I also tried silent mode. It sounded really quiet during silent mode,but the fan still revved up and down every few seconds.
What could I try to resolve these problems?