Replacing The Wifi Units - Lenovo ThinkCentre 0900 User Manual

10. Connect the new system fan assembly cable to the system fan connector on the system board. See
"Locating parts on the system board" on page 13.
11. Reinstall the heat sink fan duct. See "Replacing the heat sink and fan assembly" on page 49.
12. Reinstall the hard disk drive. See "Replacing the hard disk drive" on page 43.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to "Completing the parts replacement" on page 73.

Replacing the WiFi units

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 WiFi units. The WiFi units include a WiFi adapter
card, a WiFi card module, and a rear WiFi antenna cable.
Replacing the WiFi units involves the following operations:
• "Removing the WiFi adapter card" on page 62
• "Removing the WiFi card module" on page 63
• "Installing the WiFi units" on page 65
Removing the WiFi adapter card
To remove the WiFi adapter card, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 34.
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ThinkCentre User Guide