Adding or replacing memory modules
Memory Modules 1–7
Upgrading the memory module in the 
primary memory module slot
To upgrade a memory module in the primary memory 
module
 slot:
1. Save your work.
2. Shut down the computer. 
If you are not sure whether the computer is off or in 
hibernation, turn the computer on by pressing the power 
button. Then shut down the computer through the operating 
system.
3. Disconnect all external devices connected to the computer.
4. Unplug the power cord from the AC outlet.
5. Turn the computer upside down on a flat surface.
6. Remove the battery from the computer.