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Figure 36. Installing the hard disk drive
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 40.
Replacing the front fan assembly
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the front fan assembly.
To replace the front fan assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 14.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 14.
4. Pivot the drive bay assembly upward to gain access to the front fan assembly. See “Accessing the
system board components and drives” on page 16.
5. Remove the hard disk drive for easier access to the front fan assembly. See “Replacing the hard
disk drive” on page 34.
6. Remove the heat sink fan duct. See “Replacing the power supply assembly” on page 27.
7. Note the cable routing and disconnect the front fan assembly cable from the system fan connector on
the system board. See “Locating parts on the system board” on page 9.
36 ThinkCentre User Guide