Elvileg kapcsolgatni is tudja, legalább is a linken az áll:
$ i8kctl fan
Sample outputs:
1 1
The fan command can accept two optional parameters which specify 
the new fan state for left and right fans. The state parameter can be:
Where,
0 : turn the fan off (not recommended)
1 : set low speed
2 : set high speed
- : don't change the state of this fan
For example, the following command sets the left fan (usually used by CPU) to high speed 
and leaves the right unchanged:
$ i8kctl fan 2 -
In this example, sets the left fan (usually used by CPU) to high speed and leaves the left unchanged:
$ i8kctl fan - 2
Ezenkívül, van egy i8kmon nevű daemon ami képes hőmérséklet függően állítgatni.