Lenovo 243858U Laptop User Manual


 
11. Reinstall the battery. See “Replacing the battery” on page 72.
12. Turn the computer over again. Connect the ac power adapter and all cables.
Checking the total amount of memory installed in your computer
To make sure that the memory modules are installed correctly, do the following:
1. Turn the computer on.
2. When the logo screen is displayed, press F1. The ThinkPad Setup program main menu opens. The
Installed memory item shows the total amount of memory installed in your computer.
3. If the Installed memory item shows a different amount of memory from what you installed, check
whether you have correctly followed the instructions in this section.
Replacing the wireless LAN card
Before you start, print these instructions.
DANGER
Electric current from power and communication cables is hazardous. To avoid shock hazard,
disconnect the cables before opening the cover of this slot.
Attention: Before you start installing a wireless LAN card, touch a metal table or a grounded metal object.
This action reduces any static electricity from your body. The static electricity could damage the card.
To replace the wireless LAN card, do the following:
1. Turn off the computer, then disconnect the ac power adapter and all cables from the computer. Wait
three to ve minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See “Replacing the battery” on page 72.
4. Remove the keyboard. See “Replacing the keyboard” on page 78.
86 User Guide