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5. Disconnect the card reader cable from the USB connector on the system board. See “Locating parts on
the system board” on page 9.
6. Release the card reader cable from the cable clip that secures the cable to the chassis.
7. Lower the drive bay assembly. See “Accessing the system board components and drives” on page 16.
8. Remove the screw that secures the card reader. Then, remove the card reader from the chassis.
Figure 37. Removing the card reader
9. Position the new card reader to the chassis so that the screw hole in the new card reader is aligned with
the corresponding hole in the chassis.
10. Install the screw to secure the new card reader in place.
11. Pivot the drive bay assembly upward. Then, connect the new card reader cable to the USB connector
on the system board. See “Locating parts on the system board” on page 9.
12. Properly route the cable of the new card reader, and then secure the cable with the cable clip on
the chassis.
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 43.
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:
Chapter 2. Installing or replacing hardware 39