Lenovo ThinkCentre E73, Hardware Maintenance Manual

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7. Position the new memory module over the memory slot. Make sure that the notch 1 on the memory
module aligns correctly with the slot key 2 on the system board. Push the memory module straight
down into the slot until the retaining clips close.
Figure 19. Installing a memory module
8. Reinstall the PCI Express x16 graphics card if you have removed it.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 122.
Replacing the rear fan assembly
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important safety information”
on page 1.
This section provides instructions on how to replace the rear fan assembly.
To replace the rear fan assembly, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 82.
3. Locate the rear fan assembly. See “Locating major FRUs and CRUs” on page 69.
4. Disconnect the rear fan assembly cable from the system fan connector on the system board. See
“Locating parts on the system board” on page 72.
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ThinkCentre E73 Hardware Maintenance Manual