Installing Or Replacing A Memory Module - Lenovo ThinkCentre M91 Hardware Maintenance Manual

3. Remove the front bezel by releasing the two plastic tabs and pivoting the front bezel outward.
Figure 6. Removing the front bezel
4. To reinstall the front bezel, align the plastic tabs on the bottom of the bezel with the corresponding holes
in the chassis, and then pivot the front bezel inward until it snaps into position.
5. Go to "Completing the parts replacement" on page 98.

Installing or replacing a memory module

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to:
http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to install or replace a memory module.
Your computer has four slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of 16
GB system memory. When installing or replacing a memory module, Use 1 GB, 2 GB, 4 GB, or 8 GB DDR3
UDIMMs in any combination up to a maximum of 16 GB.
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. Open the computer cover. See "Opening the computer cover" on page 72.
3. Locate the memory slots. See "Locating parts on the system board" on page 71.
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ThinkCentre Hardware Maintenance Manual