Datasheet

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 base enclosure (see
Base enclosure on page 43).
5. Remove the keyboard (see
Keyboard on page 72).
54 Chapter 4 Removal and replacement procedures