Fan not running Archlinux U410

Hello,
I installed Archlinux on my U410, everything works fine, but the fans don't seem running:
# acpi -c
Cooling 0: Processor 0 of 10
Cooling 1: Processor 0 of 10
Cooling 2: Processor 0 of 10
Cooling 3: Processor 0 of 10
Cooling 4: LCD 0 of 15
# acpitool -f
Fan : not available
but I couldn't find how to control them, since /proc/acpi/fan/ or similar don't exist and I couldn't find anything that helps me.
Is there an other way? If you need additional information about my system and/or configuration, I'm happy to post them here.
best regards

Hi
In many laptops, the fan is not detected as it does in desktop and hence you can't monitor it. If it doesn't show, it's not necessary that it isn't working. You can always check by keeping a hand on the fan vent and see the temperatures of your laptop's processor.
One thing to add, if the fan doesn't work, then the computer only works for a very short period of time.
There is also a program called Speedfan which can monitor the fan. Though.i am not 100% sure if it would give correct readings. You can use MSI afterburner for monitoring fan movements and controlling it.
To conclude i would like to say that these all things depend on a blue wire attached with the fan socket. If your laptop does not have it, then the above may not work.
Regards
Ishaan Ideapad Y560(i3 330m), Hp Elitebook 8460p!(i5-2520M) Hp Pavilion n208tx(i5-4200u)
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