Asus L3800

Disassembly

1. Remove the battery
2. Unscrew the back plate

   
   The 4 screws in the back plate help secure the display. The display can stay attached to the top of the case, so only the 2 bottom screws have to be removed.

3. Unscrew the bottom

   
   Remove the 12 screws that are circled in the picture. All panels can stay in place, and so can the CD-R/W drive (which is secured partly by the center screw on the left side).

4. Remove the button / indicator panel

   
   Release the panel by gently pressing down in the circled hole and sliding the panel to the left.

   

5. Remove the keyboard

   
   Lift up the keyboard and disconnect it.

6. Remove the top of the case

   
   Disconnect the touchpad, the display and the beeper. Unscrew the 10 screws that are circled, and remove the two panels (the screw inside the mini-pci opening can stay in place). Gently remove the top together with the display.

• Once you have removed the top, you have access to the systemboard.
  

Power Connector

• The power connector is held in place only by solder connections. These pictures show bad solder joints for the power connector, rendering the machine without power supply / battery charger.
  
• For an easy fix, clean and resolder the connections and glue the connector in place. Only time can tell if this will hold up to the forces of the cable pulling the connector down, away from the motherboard...
  

CPU Heatsink

The processor is cooled by a fan blowing air (sideways) through a small heatsink. In time, dust builds up in the air duct in front of the heatsink. For optimal cooling performance, the dust needs to be removed once in a while.

1. Remove the panel covering the CPU and heatsink by unscrewing the 2 screws.
2. Remove the heatsink by unscrewing the 4 screws, and gently lifting it (this may require a small turning motion to break the bond of the thermal paste).
   
3. Clear away any dust, and the thermal paste (from both the processor and the heatsink).
   
4. Apply new thermal paste, replace the heatsink and secure it with the 4 screws.