2. Remove the computer cover. See "Removing the computer cover" on page 80.
3. Lay the computer on its side for easier access to the system board.
4. Remove the PCI card holder. See "Removing and reinstalling the PCI card holder" on page 81.
5. Your computer supports two heat sink and fan assemblies. Locate the heat sink and fan assembly you
want to replace. See "Locating parts on the system board" on page 76.
6. Depending on the heat sink and fan assembly you want to replace, do one of the following:
• If you are replacing heat sink and fan assembly 2, go to step 7.
• If you are replacing heat sink and fan assembly 1, do the following:
a. Remove the optical drive. See "Installing or replacing the optical drive" on page 87.
b. Pivot the optical drive bracket as shown in the following illustration and then remove it from
the chassis.
Figure 20. Removing the optical drive bracket
7. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system
board. See "Locating parts on the system board" on page 76.
.
Chapter 10
Replacing FRUs
91