Replacing A Memory Module - Lenovo B490 User Manual

6. Remove the hard disk drive by lifting the tab
7. Slide a new hard disk drive firmly into place, and then reinstall the screw to secure the drive.
8. Reinstall the computer cover, and then reinstall the screws to secure the cover.
9. Reinstall the battery. See "Replacing the battery" on page 33.
10. Turn the computer over again. Connect the ac power adapter and all cables.

Replacing a memory module

Before you start, print these instructions.
Note: Your computer might look different from the illustrations in this topic.
Prerequisites for the procedure
Note: The operating speed of the memory module has dependency on the system configuration. 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. The static electricity could damage the memory module.
To replace a memory module, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to five minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See "Replacing the battery" on page 33.
5
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Chapter 7 Replacing devices
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