Installing Or Replacing A Memory Module - Lenovo ThinkCentre E73 User Manual

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 78.

Installing or replacing a memory module

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
on page v.
This section provides instructions on how to install or replace a memory module.
Your computer has two slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of
8 GB system memory. When installing or replacing a memory module, use 1 GB, 2 GB, or 4 GB DDR3
UDIMMs in any combination up to a maximum of 8 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 38.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 38.
4. Pivot the drive bay assembly upward to gain access to the memory slots. See "Accessing the system
board components and drives" on page 40.
5. Remove the heat sink fan duct. See "Replacing the heat sink and fan assembly" on page 60.
6. Locate the memory slots. See "Locating parts on the system board" on page 13.
7. Remove any parts that might prevent your access to the memory slots. Depending on your computer
model, you might need to remove the PCI Express x16 graphics card for easier access to the memory
slots. See "Installing or replacing a PCI Express card" on page 41.
8. Depending on whether you are installing or replacing a memory module, do one of the following:
• If you are replacing an old memory module, open the retaining clips and gently pull the memory
module out of the memory slot.
Figure 15. Removing a memory module
.
Chapter 5 Installing or replacing hardware
43