Lenovo ThinkCentre E73z, Hardware Maintenance Manual, Page: 102 / 124

To install or replace a memory module, 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 memory slots on the system board. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield or open the system board shield window to get access to the battery.
See “Removing and reinstalling the system board shield” on page 83.
6. Remove any parts and disconnect any cables that might prevent your access to the memory slots.
7. Do one of the following:
• If you are replacing a memory module, open the retaining clips and remove the old memory module
that is currently installed.
Figure 36. Removing a memory module
• If you are installing a memory module, open the retaining clips of the memory slot into which you
want to install the memory module.
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ThinkCentre E73z Hardware Maintenance Manual