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5. Carefully lift and position the computer upside down as shown in 6.
6. Pivot the cover-release button 1 on the rear of the computer and then open
the computer cover as shown.
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 Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to install or replace a memory module.
Your computer has two slots for installing SODIMMs (small outline dual inline
memory modules) that provide up to a maximum of 4 GB of system memory.
When installing memory modules, the following rules apply:
v Use 1.8 V, 200-pin DDR3 SDRAM (double data rate 3 synchronous dynamic
random access memory).
v Use 1 GB or 2 GB memory modules in any combination up to a maximum of 4
GB.
To install or replace a memory module:
1. Open the computer cover. See “Opening the computer cover” on page 12.
2. Locate the memory slots. See “Locating parts on the system board” on page 10.
Figure 5. Opening the computer cover
Chapter 2. Installing options and replacing hardware 13