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– If your system is installed with the Windows 7 operating system, use Rescue and Recovery
workspace or the recovery discs to restore the system to the factory state.
– If your system is installed with the Windows 8 operating system, use either the Remove everything
and reinstall Windows function or the recovery discs to restore the system to the factory state.
If the problem persists, have the computer serviced.
• Problem: My screen goes blank while the computer is on.
Solution: Your screen saver or power management might have been enabled. Do either of the following:
– Touch the TrackPoint pointing device or the touch pad, or press a key to exit the screen saver.
– Press the power button to resume from sleep or hibernation mode.
Beep errors
Table 8. Beep errors
Problem
Solution
One short beep, pause, three short beeps, pause, three
more short beeps, and one short beep
Ensure 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.
Three short beeps, pause, one short beep, pause, one
more short beep, and three short beeps
PCI resource allocation failure. Power off and remove
device from ExpressCard Slot. If the beeps persist, have
the computer serviced.
Four cycles of four short beeps
The Security Chip has a problem. Have the computer
serviced.
Five short 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. Check for error messages during startup.
Follow the appropriate corrective actions for power-on self-test (POST) error messages.
2. Verify that the latest UEFI for your model has been installed.
3. Verify the proper memory conguration and compatibility including the maximum memory size and the
memory speed.
4. Run the Lenovo Solution Center program.
Networking problems
The following are the most common networking problems.
Ethernet problems
• Problem: Your computer cannot connect to the network.
Solution: Ensure that:
– The Lenovo USB 2.0 Ethernet Adapter is connected correctly to your computer.
Chapter 8. Troubleshooting computer problems 93