3.Remove the WLAN module by pulling the module away from the slot at an angle (3).

NOTE: If the WLAN antennas are not connected to the terminals on the WLAN module, the protective sleeves must be installed on the antenna connectors.

Memory module

Description

Spare part number

 

 

4-GB memory module (PC3, 12800, 1600-MHz)

641369-005

 

 

2-GB memory module (PC3, 12800, 1600-MHz)

652972–005

 

 

8-GB memory module (PC3, 12800, 1600-MHz)

670034–005

 

 

Before removing a memory 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 display panel (see Display panel on page 32).

5.Remove the base enclosure (see Base enclosure on page 34).

6.Remove the keyboard (see Keyboard on page 62).

46 Chapter 4 Removal and replacement procedures