Lenovo 3658 - Manual (Page 28)

5. Locate the memory slots. See Figure 4 on page 12.
6. Open the retaining clips.
If you are replacing an old memory module, open the retaining clips and
remove the memory module being replaced as shown.
7. Position the memory module over the memory slot. Make sure that the notch
1 on the memory module aligns correctly with the slot key 2 on the system
board. Push the memory module straight down into the slot until the retaining
clips close.
Figure 10. Opening the retaining clips
Figure 11. Removing the memory module
Figure 12. Installing the memory module
20 User Guide