Lenovo ThinkStation C30 User Manual page 53

2. Remove the computer cover. See "Removing the computer cover" on page 30.
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 32.
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 11.
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 "Replacing the optical drive" on page 37.
b. Pivot the optical drive bracket as shown in the following illustration and then remove it from
the chassis.
Figure 24. 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 11.
.
Chapter 5 Installing or replacing hardware
41