Lenovo ThinkPad Edge L330 (English) User Guide - Page 95

Beep errors, Memory module problems, Networking problems, Ethernet problems

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Beep errors Table 7. Beep errors Problem One short beep, pause, three short beeps, pause, three more short beeps, and one short beep One long and two short beeps Four cycles of four short beeps Five beeps Solution Make sure that memory modules are installed correctly. If they are, and you still hear the beeps, have the computer serviced. The video function has a problem. Have the computer serviced. Shut down the computer immediately and have the computer serviced. The system board has a problem. Have the computer serviced. 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. 2. Check for error messages during startup. Follow the appropriate corrective actions for power-on self-test (POST) See "Error messages" on page 78. 3. Verify that the latest UEFI 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 77. Note: You might call the Customer Support Center for help. Networking problems The following are the most common networking problems. Ethernet problems • Problem: Your computer cannot connect to the network. Solution: Make sure 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 meters. If the cable is connected and the distance is within acceptable limits but if the problem persists, try a different cable. - You are using the correct device driver. To install correct driver, do the following: 1. Click Start ➙ Control Panel ➙ Hardware and Sound ➙ Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. 2. If the exclamation mark ! is displayed next to the adapter name under Network adapters, you might not be using the correct driver or the driver might have been disabled. To update the driver, right-click the highlighted adapter. 3. Click Update Driver Software, and then follow the instructions on the screen. Chapter 8. Troubleshooting computer problems 81

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Beep errors
Table 7. Beep errors
Problem
Solution
One short beep, pause, three short beeps, pause, three
more short beeps, and one short beep
Make sure that memory modules are installed correctly. If
they are, and you still hear the beeps, have the computer
serviced.
One long and two short beeps
The video function has a problem. Have the computer
serviced.
Four cycles of four short beeps
Shut down the computer immediately and have the
computer serviced.
Five beeps
The system board has a problem. Have the computer
serviced.
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.
2. Check for error messages during startup.
Follow the appropriate corrective actions for power-on self-test (POST) See “Error messages” on page
78.
3. Verify that the latest UEFI 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 77.
Note:
You might call the Customer Support Center for help.
Networking problems
The following are the most common networking problems.
Ethernet problems
•
Problem
: Your computer cannot connect to the network.
Solution
: Make sure 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 meters. If the cable is connected and the distance is within acceptable limits but if the problem
persists, try a different cable.
–
You are using the correct device driver. To install correct driver, do the following:
1. Click
Start
➙
Control Panel
➙
Hardware and Sound
➙
Device Manager
. If you are prompted
for an administrator password or confirmation, type the password or provide confirmation.
2. If the exclamation mark
!
is displayed next to the adapter name under
Network adapters
, you
might not be using the correct driver or the driver might have been disabled. To update the driver,
right-click the highlighted adapter.
3. Click
Update Driver Software
, and then follow the instructions on the screen.
Chapter 8
.
Troubleshooting computer problems
81