Question Fan spins at max RPM despite CPU being idle

[yannickjoshua]

Hi! Last week I built my first PC. I was a bit nervous about accidentally breaking parts, but it actually went quite well. The only thing it was missing, was an operating system, so earlier today I installed Windows 10 to my SSD. After about half a minute I realized that one of the fans was making a lot of noise. Not long after Windows had succesfully booted, the GPU's fans automatically turned off because it wasn't being used. That's when I knew the sound was coming from the CPU cooler, the Wraith Stealth. I immediately downloaded NZXT's Cam software to try and figure out what was going on. Apparently the fan was spinning at ~1660 RPM (which is its max speed according to Cam) despite the fact that it wasn't under any load.

What could be the reason for this and how do I fix it?

Also, I don't know if this has anything to do with the fan spinning so fast, but it's making a strange noise. Here's the audio, you have to turn the volume up high to hear it though: https://vocaroo.com/i/s0N03jtk7Men

For some reason I can't add any images to this post, so here's a screenshot of the Cam software:

https://imgur.com/a/ulEkJMQ

I'm not sure if this info is really necessary, but here are the specs:
Ryzen 5 2600 (with Wraith Stealth installed)
Sapphire RX 580 Nitro+ 8GB
Kingston HyperX Fury 8GB 2666MHz RAM
Crucial MX500 250GB M.2 SSD
ASRock B450 Fatal1ty Gaming-ITX/ac
Corsair SF450 PSU

 

[popatim]

Where is the fan plugged into?

 

[Gmoney06ss]

Where is the fan plugged into?

Definitely check into this and make certain the fan is plugged into the cpu_fan header. A little googling shows the fan on the stealth cooler should run upwards of 1900-2000rpm, depending on where the info comes from. I would recommend a different monitoring system. AMD ryzen master would probably be a solid choice for that cpu.

 

[yannickjoshua]

Where is the fan plugged into?

Into the CPU fan header. I looked in the motherboard manual to check if it was the correct one, just to be sure. I just turned off the system, checked to see if I inserted it the right way, and it is.

Definitely check into this and make certain the fan is plugged into the cpu_fan header. A little googling shows the fan on the stealth cooler should run upwards of 1900-2000rpm, depending on where the info comes from. I would recommend a different monitoring system. AMD ryzen master would probably be a solid choice for that cpu.

Ah okay, that's strange that Cam says it's at its max RPM. I actually already have AMD Ryzen Master, but it doesn't show me anything about the CPU fan. Here's a screenshot of it:

https://imgur.com/a/QSrz53S

 

[CountMike]

Use HW info https://www.hwinfo.com/download/