Lenovo E525, E425 Beep errors, Memory module problems, Networking problems, Ethernet problems

Beep errors

Table 7. Beep errors

Problem	Solution
One short beep, pause, three short beeps, pause, three	Make sure that memory modules are installed correctly. If
more short beeps, and one short beep	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.
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.

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. For the procedures to remove and reinstall a memory module, refer to “Replacing a memory module” on page 81.

2.Check for error messages during startup.

Follow the appropriate corrective actions for Power-on self-test (POST) error messages, see “Error messages” on page 115.

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.

For details, refer to the instructions in “Replacing a memory module” on page 81.

5.Run diagnostic programs. See “Diagnosing problems” on page 113.

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 properly.

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 the problem persists, try a different cable.

–You are using the correct device driver.

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 ! mark is to the left of the adapter name under Network adapters, you might not use the correct driver or the driver is not enabled. To update the driver, right-click the highlighted adapter.

120User Guide