Upgrading a memory module in the primary memory
module slot
The expansion memory module slot is stacked above the primary memory module slot. To upgrade a
memory module in the primary memory module slot, follow these steps:
1. Save your work.
2. Shut down the computer and close the display.
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.
7. Loosen the bottom door screws (1).
8. Slide the bottom door forward (2), and then lift it (3) away from the computer.
NOTE: Refer to the illustration that most closely matches your computer.
NOTE: If a memory module is installed in the expansion memory module slot, first remove the
expansion memory module.
80 Chapter 9 Memory modules
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