9. Install the screw to secure the hard disk drive or solid-state drive.
10. Reinstall the base cover assembly and the external battery pack.
11. Turn over the computer and connect the ac power adapter and all cables.
Replacing a memory module
Before you start, print these instructions.
Increasing memory capacity is an effective way to make programs run faster. You can increase memory
capacity by replacing or adding a memory module.
Note: The operating speed of the memory module has dependency on the system conguration. In some
conditions, the memory module in your computer might not be able to operate at the maximum speed.
Attention: Before you start installing a memory module, touch a metal table or a grounded metal object. This
action reduces any static electricity from your body. Static electricity could damage the memory module.
To replace a memory module, do the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 67.
2. Close the computer display, and turn the computer over.
3. Remove the external battery pack. See “Replacing the external battery pack” on page 69.
4. Remove the base cover assembly. See “Replacing the base cover assembly” on page 71.
74 User Guide