7. Turn on the computer.
As the computer boots, it detects the additional memory and automatically updates the system configuration information.
To confirm the amount of memory installed in the computer, click the Start button, click Help and Support, and then click Computer Information.
Subscriber Identity Module (SIM) Card
1. Follow the procedures in Before You Begin.
2. Remove the battery (see Replacing the Battery).
3. Slide the SIM card into the compartment with the cut-off corner of the card facing away from the compartment.
Wireless Cards
If you ordered a wireless LAN or WAN card with your computer, the card is already installed.
Wireless Local Area Network (WLAN) Cards
1. Follow the procedures in Before You Begin.
2. Remove the hinge cover (see Hinge Cover).
3. Remove the keyboard (see Keyboard).
4. Ground yourself by touching one of the metal connectors on the back of the computer.
5. If a card is not already installed, go to step 6. If you are replacing a card, remove the existing card:
a. Disconnect the antenna cable from the card.
