When I uninstalled my video drivers (I have GeForce GT 525M) in order to install the newest ones, my laptop's fan was constantly working during the installation of the new ones, even though it wasn't heated much.Is this normal? Do the drivers of the video card control when the fan spins? Is it normal that without video drivers, the fan spins without stopping? Now that I installed the newest ones and rebooted the laptop, the problem is fixed and the fan is working normally. I hope that you can help me. Thank you.