Lenovo ThinkCentre E73z, Hardware Maintenance Manual, Page: 103 / 124

8. Insert the notched end 1 of the new memory module into the slot. Press the memory module firmly
and pivot the memory module until it snaps into place. Ensure that the memory module is secured
in the slot and does not move easily.
Figure 37. Installing a memory module
9. Reinstall the system board shield or close the system board shield window. See “Removing and
reinstalling the system board shield” on page 83.
10. Go to “Completing the parts replacement” on page 108.
Replacing the internal speakers
Attention: Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” on page 1
This section provides instructions on how to replace the internal speakers.
To replace the internal speakers, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 75.
4. Locate the internal speakers in the computer. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 83.
6. Note the location of the internal speaker cable connection and the routing of the internal speaker cables.
Disconnect the internal speaker cables from the system board.
Chapter 9
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Replacing FRUs
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