Edit: I tried powering the fan from a phone charger with 5V, when I monitor the CPU voltage with speccy it seems that is good ( average 36°, but when not powering the fan the temperature keep rising until the laptop shutdown), but after few minutes the laptop keep beeping -discontinuous beep- for a while and then the it shuts down. i think that the computer shuts down because it does not have the signal that the fan is working, i tried to wire the 3rd wire of then fan in the motherboard like it was but nothing changes (i think i should also wire the gnd so as the 3rd wire signal works? but the gnd now is with the external charger), or may be this is caused from another thing. the other problem that the fan now is making lot of noise (i think normally the computer regulates the power of the fan regards the temperature).
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