4–14 Maintenance and Service Guide
Removal and replacement procedures
Wireless module
Before removing the WLAN module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on,
and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the battery (see “Battery” on page 4-7).
Description Spare part number
Atheros AR2425 802.11b/g WLAN module 459339-003
Atheros AR2425 802.11b/g WLAN module 459339-004
Broadcom BCM4312 802.11b/g WLAN module 459263-001
Broadcom BCM4312 802.11b/g WLAN module 459263-002
Atheros AR9280 802.11a/b/g/n WLAN module 482260-001
Atheros AR9280 802.11a/b/g/n WLAN module 482260-002
Intel Wi-F- 5100 802.11 a/b/g WLAN module 482957-001
Intel Wi-Fi 5100 802.11 a/b/g/n WLAN module 480985-001
Atheros 802.11 b/g/n WLAN module 518436-001
Atheros 802.11 b/g/n WLAN module 518436-002
Atheros 802.11 a/b/g/n WLAN module 518437-001
Atheros 802.11 a/b/g/n WLAN module 518437-002
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