Lenovo ThinkCentre M72e Hardware Maintenance Manual page 84

Your computer has two slots for installing or replacing DDR3 SODIMMs that provide up to a maximum of
16 GB system memory. When installing or replacing a memory module, use 2 GB, 4GB, or 8GB DDR3
SODIMMs in any combination up to a maximum of 16 GB.
To install or replace a memory module, 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 77.
3. Locate the memory slots. See "Locating parts on the system board" on page 72.
4. Remove the hard disk drive bracket to get your access to the memory slots. See "Replacing the hard
disk drive bracket" on page 107.
5. If you are replacing an old memory module, open the retaining clips and gently pull the memory module
out of the memory slot.
Figure 13. Removing the memory module
6. Insert the notched end
firmly and pivot the memory module until it snaps into place. Make sure that the memory module is
secured in the slot and does not move easily.
Figure 14. Installing a memory module
7. Reinstall the hard disk drive bracket. See "Replacing the hard disk drive bracket" on page 107.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
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ThinkCentre Hardware Maintenance Manual
2 of the new memory module into the slot 1 . Press the memory module