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8. Reinstall the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 51.
9. Close the adapter card retainer.
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 55
.
Replacing the card reader
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important
safety information” on page v
.
This section provides instructions on how to replace the card reader.
Note: The card reader is only available in some models.
To replace the card reader, 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 30.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 30.
4. Locate the card reader. See “Locating components” on page 10.
5. Disconnect the card reader cable from the front USB connector on the system board. See “Locating
parts on the system board” on page 11.
Chapter 5. Installing or replacing hardware 45