In this guide I show to remove and replace the cooling fan in a Dell Latitude D600 laptop.
In this model the cooling module is buried deep inside.
Also you can use this guide for cleaning the cooling module and removing dust from the heat sink.
If your laptops shuts down on its own without any warning, most likely it happens because of overheating. Make sure the fan works and the heat sink is not clogged with dust.
Before you start, turn off the computer, unplug the AC adapter and remove the battery.
Remove all marked screws from the bottom.
Lift up the switch cover with a small screwdriver. Continue removing the cover with your fingers.
When the switch cover is removed you can access two screws securing the keyboard. Remove these screws.
Lift up the keyboard and access the cable. Disconnect the keyboard cable from the motherboard.
Remove three (red) screws securing the display hinges.
Remove one (yellow) screw securing the video cable ground.
Disconnect the video cable connector from the motherboard.
Remove the LCD assembly.
Take a look at this guide for the screen removal instructions.
Remove three screws securing the top cover.
Disconnect the touchpad cable from the motherboard.
Start separating the top cover from the base with your fingers.
Remove the top cover assembly.
Now you can clean up the cooling module using compressed air.
In order to replace the fan, continue laptop disassembly.
Loosen four screws securing the heat sink. Lift up and remove the heat sink.
Remove two screws securing the cooling fan.
Disconnect the fan cable from the motherboard.
Remove and replace the cooling fan with a new one.
When you install the heat sink back in place don’t forget to apply thermal paste.