Lenovo ThinkStation P720 Hardware Maintenance Manual page 181

• Always install DIMMs in the following order as illustrated:
Figure 138. 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. Remove the flex-bay bracket. See "Flex-bay bracket" on page 125.
3. Remove the rear fan assembly. See "Rear fan assembly" on page 171.
4. Lay the computer on its side for easier access to the system board.
5. Locate and disconnect the memory fan cable from the system board. Open the handle on the memory
air baffle and lift the air baffle out of the chassis.
Figure 139. Removing the memory air baffle
6. Locate the memory module slot. See "Parts on the system board" on page 38.
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Chapter 9 Hardware removal and installation
175