Replacing A Memory Module - Lenovo ThinkCentre M900z 10F2 User Manual

5. Insert the straight edge of the new memory module shield into the hole as shown. Then, pivot it
downward until it snaps into position.
Figure 20. Installing the memory module shield
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 59.

Replacing a memory module

Attention: Do not open your computer or attempt any repair before reading and understanding the "Read
this first: Important safety information" on page iii .
Note: If you have two memory modules, ensure that you install the memory modules first into the lower
memory slot and then the upper one.
To replace a memory module, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the back cover. See "Removing the back cover" on page 54.
3. Remove the memory module shield to expose the memory module. See "Replacing the memory
module shield" on page 55.
4. Open the retaining clips and gently pull the memory module out of the memory slot.
Figure 21. Removing a memory module
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ThinkCentre M900z User Guide