My laptop is a Dell Inspiron 3521, dual booted Windows 7 with Ubuntu 18.04 LTS.
Two days ago I installed Ubuntu, when I start Ubuntu the fan speed is at 0 RPM. It eventually increases when the temperature rises (1200 -> 2600 -> 3200 -> 4800). But the problem is that the fan speed goes to max (4800 RPM) at about 55 °C and it never decreases. The temperature drops to a minimum of 42 °C.
All readings are taken from
psensor. In Windows, at 42 °C the fan doesn't even start, and I've barely seen it goes to max speed (monitored with
So I'm a bit worried about this matter. I've read some other articles about fan speeds, and as they suggest I don't want to mess with the fan speed by manually overriding it unless it's absolutely necessary. Laptop's specs are here.
- What would be the cause to fan to run continuously at max speed?
- Besides the sound, is it a problem to let fan continue at this speed?