CPU fan speed

Roman New Member Posts: 2


I've noticed an apparent issue with UP Xtreme CPU fan not speeding up when CPU temperature increases on Ubuntu 19.10 (stock 5.x kernel) and 18.04 (running 5.x kernel from ppa:aaeonaeu/upboard). In both cases, I was able to push the core temperature to a steady 93-94C range using a CPU stress test (stress-ng) but the CPU fan was still barely spinning. Good for noise control, bad for temperature control. The numbers in /proc/cpuinfo seem to indicate that cores' clocks are being throttled.

The lm-sensors package could not find any CPU fan controls.

Has anyone run into similar issues or knows of possible workarounds?