Turn the computer around and remove the eighteen screws on the base cover.
The screws that secure the base cover are of different sizes. Note the location and size of the screws as you remove them so that you can replace them correctly
Lift the connector latch that secures the touch pad cable to the touch pad connector and remove the cable.
To prevent damage to the display hinges, ensure that you do not adjust the angle between the display and the computer base after removing the palm rest assembly.
Align the notch in the memory module with the tab in the memory module connector.
Slide the module firmly into the slot at a 45-degree angle, and press the other end of the module down until it clicks into place. If you do not hear the click, remove the module and reinstall it.
If the memory module is not installed properly, the computer may not boot.
Then put the computer battery back within the computer.
Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer.
Turn on the computer. As the computer boots, it detects the memory and automatically updates the system configuration information.To confirm the amount of memory installed in the computer, Click Start ®Control Panel®System and Security®System.