Lenovo ThinkStation P520 Hardware Maintenance Manual page 177

• Always install DIMMs in the following order as illustrated:
Figure 124. Memory module installation order
To remove or install a memory module, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 103.
2. Lay the computer on its side for easier access to the system board.
3. Locate the memory module slot. See "Parts on the system board" on page 42.
4. To remove the memory module, open the retaining clips and gently pull the memory module out of the
memory slot.
Figure 125. Removing a memory module
5. To install a memory module, do the following:
.
Chapter 9 Hardware removal and installation
169