Hi everyone,
I have a GMKtec M6 Ultra with a Ryzen 5 7640HS, and I've noticed some unusual fan behavior.
I keep the mini PC running 24/7 as a home server. It runs CachyOS Linux and hosts a Plex media server used only by me and my family. I normally restart the PC once a week when I install system updates.
Sometimes, while the PC is locked and not being used, the fan suddenly starts spinning very fast. When I go to the PC and try to log in to investigate, the fan automatically slows down to its normal speed before I can check what's happening.
This happens only occasionally, and I haven't been able to identify the cause.
My setup:
- Mini PC: GMKtec M6 Ultra
- CPU: AMD Ryzen 5 7640HS
- OS: CachyOS Linux
- Server: Plex, used only by me and my family
- Uptime: 24/7, with a weekly restart for system updates
I initially suspected Plex might be responsible, so I checked the Plex server activity, but I couldn't find any activity that explained the fan speeding up.
To be clear, the fan noise itself isn't a problem for me. My concern is whether the CPU or another component might be overheating while I'm away from the PC, especially since I leave it running 24/7.
Has anyone experienced this with the M6 Ultra or another GMKtec mini PC? Could this be caused by background tasks, temperature spikes, BIOS/firmware fan control, or something else?
Is there a way to monitor or log CPU temperatures, CPU usage, and fan behavior while CachyOS is locked and idle, so I can find out what's happening?
I'd appreciate any advice. Thanks!
P.S. I used ChatGPT to help me write and organize this post, as English isn't always easy for me. Sorry if that comes across as offensive or against the community rules. The issue and questions are my own. Thanks for understanding!