Lenovo ThinkPad Edge E430 (English) User Guide - Page 141

Beep errors, Memory module problems, My screen goes blank while the computer is on.

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- The ac power adapter is connected to the computer and the power cord is plugged into a working electrical outlet. - The computer is turned on. (Turn the power button on again for confirmation.) If a power-on password is set: - Press any key to display the prompt for the power-on password. If the brightness level of the screen is low, increase it by pressing Home. - Type the correct password and press Enter. If these items are correctly set, and the screen remains blank, have the computer serviced. • Problem: When I turn on the computer, only a white cursor is displayed on a blank screen. Solution: If you have modified a partition on your hard disk drive by using partition software, information about that partition, or the master boot record might have been destroyed. 1. Turn off the computer, and then turn it on again. 2. If you still see only the cursor on the screen, do the following: - If you have used the partition software, examine the partition on the hard disk drive by using the software, and recover the partition if required. - Use either the OneKey Recovery Pro workspace 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. 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 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. 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. 2. Check for error messages during startup. Chapter 9. Troubleshooting computer problems 123

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–
The ac power adapter is connected to the computer and the power cord is plugged into a working
electrical outlet.
–
The computer is turned on. (Turn the power button on again for confirmation.)
If a power-on password is set:
–
Press any key to display the prompt for the power-on password. If the brightness level of the screen
is low, increase it by pressing Home.
–
Type the correct password and press Enter.
If these items are correctly set, and the screen remains blank, have the computer serviced.
•
Problem
: When I turn on the computer, only a white cursor is displayed on a blank screen.
Solution
: If you have modified a partition on your hard disk drive by using partition software, information
about that partition, or the master boot record might have been destroyed.
1. Turn off the computer, and then turn it on again.
2. If you still see only the cursor on the screen, do the following:
–
If you have used the partition software, examine the partition on the hard disk drive by using the
software, and recover the partition if required.
–
Use either the OneKey Recovery Pro workspace 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.
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.
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.
2. Check for error messages during startup.
Chapter 9
.
Troubleshooting computer problems
123