Lenovo ThinkCentre M800, Hardware Maintenance Manual, Page: 129 / 178

3. Remove the front bezel. See “Replacing the front bezel” on page 88.
4. Remove the optical drive. See “Replacing the optical drive” on page 104.
5. Locate the memory module you want to replace. The memory modules are installed in the memory slots
on the system board. See “Parts on the system board” on page 35.
6. Press the retaining clip 1 in the direction as shown and pivot the drive bay assembly upward at the
same time.
Figure 67. Pivoting the drive bay assembly upward
7. Pivot the two plastic retaining clips that secure the heat sink fan duct outward. Then, remove the heat
sink fan duct from the failing heat sink and fan assembly.
Figure 68. Removing the heat sink fan duct
8. Remove any parts that might prevent your access to the memory module. Depending on your computer
model, you might need to remove the PCI Express x16 graphics card for easier access to the memory
module. See “Replacing a PCI Express card” on page 134.
Chapter 9
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Installing or replacing hardware
121