Specifications

NOTE: If the WWAN antenna cables are not connected to the terminals on the WWAN module,
protective sleeves should be installed on the antenna connectors, as shown in the following
illustration.
Reverse this procedure to install the WWAN module.
WLAN module
Description Spare part number
Intel 802.11 a/b/g/n 2x2 Combo Adapter 670292-001
Intel 802.11 b/g/n HMC 1x1 675794-001
Atheros 802.11 b/g/n 1x1 690019-001
Intel 802.11 2x2 a/b/g/n 695915-001
Intel 802.11 2x2 a/b/g/n 710661-001
Intel 802.11 a/b/g/n 2x2 + Bluetooth 4.0 WLAN 717381-001
Broadcom 802.11 a/b/g/n 2x2 + BT 4.0 LE PCIe+USB HMC WW 730668-001
Intel 802.11 a/b/g/n 2x2 + BT 4.0 WLAN 747832-001
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless
devices in your country or region. If you replace the module and then receive a warning message,
remove the module to restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 63).
5. Remove the service cover (see
Service cover on page 64).
74 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts