Lenovo ThinkCentre A58 5473 User Manual page 22

When installing or replacing a memory module, use the following guidelines:
v Use 1.8 V, 240-pin, DDR2 DIMMs (double data rate 2 dual inline memory
v Use 512 MB, 1 GB, or 2 GB memory modules in any combination up to a
Note: Only DDR2 SDRAM DIMMs can be used.
To install or replace a memory module:
1. Open the computer cover. See "Opening the computer cover" on page 12.
2. Pivot the drive bay assembly upward to access the memory slots. See
3. Remove any parts that might prevent your access to the memory slots.
4. Locate the memory slots.
5. Open the retaining clips.
Figure 7. Opening the retaining clips
Figure 8. Removing the old memory module
14
User Guide
modules).
maximum of 4 GB.
"Accessing the system board components and drives" on page 13.
If you are replacing an old memory module, open the retaining clips and
remove the memory module being replaced as shown.