I have a hp elite 2540p energy star, the laptop gets overheating after a few hours and i found out the the fan is not working at all, i replace another fan and the problem still the same.
The fan has 4 wires red, black, yellow and blue i disconnect the blue wire from the motherboard and the fan start working but in full or in high speed and its so noisey, when i reconnect the blue wire to the motherboard the fan stop spinning and the laptop start getting hotter. any help please.