Memory Module Problems; Ethernet Problems - ThinkPad E470 User Manual

Problem: TCG-compliant functionality-related problem (might be the TPM initialization failure).
TCG is the abbreviation for Trusted Computing Group.
• Beeps: Five short beeps
Problem: System board problem.
• Beeps: Five short beeps, pause, five much shorter beeps, and pause
Problem: TCG-compliant functionality-related problem (might be the BIOS code validation failure).

Memory module problems

Print these instructions now and keep them with your computer for reference later.
Problem: My memory module is not operating properly.
Solution: Check the following items:
1. Verify that the memory module is installed and seated correctly in your computer.
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 power-on self-test (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 with Lenovo Companion" on page 57.

Ethernet problems

• Problem: My computer cannot connect to the network.
Solution:
Ensure that:
– The cable is installed correctly.
The network cable must be securely connected both to the Ethernet connector of your computer and
to the RJ45 connector of the hub. The maximum allowable distance from the computer to hub is 100
m (328 ft). If the cable is connected and the distance is within the acceptable limits but the problem
persists, try a different cable.
– You are using the correct device driver. To install the correct driver, do the following:
1. Go to Control Panel , and ensure that you view Control Panel by Category.
2. Click Hardware and Sound ➙ Device Manager. If you are prompted for an administrator
password or confirmation, type the password or provide confirmation.
3. Double click Network adapters to view all network adapters. If a exclamation mark ! is displayed
next to the adapter name, you might not be using the correct driver or the driver might have
been disabled.
4. Right-click the highlighted adapter, click Update Driver Software, and then follow the instructions
on the screen to update the driver.
– The switch port and the adapter have the same duplex setting.
If you configured the adapter for full duplex, ensure that the switch port also is configured for full duplex.
Setting a wrong duplex mode can degrade performance, cause data loss, or result in lost connections.
.
Chapter 6 Troubleshooting computer problems
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