Memory Module Problems; Networking Problems - ThinkPad S440 User Manual

Memory module problems

Print these instructions now and keep it with your computer for reference later.
If your memory module is not operating properly, check the following items:
1. Verify that the memory module is installed and seated correctly in your computer.
It might be necessary to remove all added memory modules to test the computer with only the
factory-installed memory modules, and then reinstall the memory module one at a time to ensure
a proper connection.
2. Check for error messages during startup.
Follow the appropriate corrective actions for POST error messages.
3. Verify that the latest UEFI BIOS for your model has been installed.
4. Verify the proper memory configuration and compatibility including the maximum memory size and the
memory speed.
5. Run diagnostic programs. See "Diagnosing problems" on page 101.

Networking problems

The following are the most common networking problems:
Ethernet connections
You can connect your computer to a local network or a broadband connection by using the built-in Ethernet
feature of the computer.
DANGER
Your computer has an Ethernet connector. To avoid the risk of electrical shock, do not connect
the telephone cable to the Ethernet connector.
A wireless LAN problem
Problem: You cannot connect to the network using the built-in wireless network card.
Solution: Make sure that:
• Your wireless LAN driver is the latest version.
• Your computer is within range of a wireless access point.
• The wireless radio is enabled by double-clicking the Access Connections icon on the Windows notification
area.
Note: If you are using the Windows 7 operating system, click Show hidden icons on the Windows
notification area. The Access Connections icon is displayed. For more information about the icon, refer to
the Access Connections help information system.
If your system is installed with Windows 7 operating system, Check the Network Name (SSID) and your
encryption information. Use the Access Connections program to verify this case-sensitive information.
Bluetooth problems
• Problem: Sound does not come from the Bluetooth headset/headphone but comes from the local
speaker even though the Bluetooth headset/headphone is connected using a Headset profile or AV profile.
Solution: Do the following:
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User Guide