Beep and No beep symptoms - ThinkPad X200 Tablet, X201 Tablet
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| One beep and a blank, unreadable, or flashing LCD. | - Reseat the LCD connector.
- LCD assembly.
- External CRT.
- System board.
| | One long and two short beeps, and a blank or unreadable LCD. | - System board.
- LCD assembly.
- DIMM.
| | Two short beeps with error codes. | Click here to diagnose the error code | | Two short beeps and a blank screen. | - System board.
- DIMM.
| | Three short beeps, pause, three more short beeps, and one short beep. | - DIMM.
- System board
| | One short beep, pause, three short beeps, pause, three more short beeps, and one short beep. | | Only the cursor appears. | Reinstall the operating system. | | Four cycles of four short beeps and a blank screen. | System board (security chip) | | Five short beeps and a blank screen. | System board |
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No beep, power-on indicator on, LCD blank, and no POST. | - Make sure that every connector is connected tightly and correctly.
- DIMM.
- System board.
| No beep, power-on indicator on, and LCD blank during POST. | - Reseat DIMM.
- System board.
| The power-on password prompt appears. | - A power-on password or a supervisor password is set. Type the password and press Enter.
| The hard-disk password prompt appears. | - A hard-disk password is set. Type the password and press Enter.
| | No beep, power-on indicator on, and a blank LCD during POST. | System board. | - LCD backlight not working.
- LCD too dark.
- LCD brightness cannot be adjusted.
- LCD contrast cannot be adjusted.
| - Reseat the LCD connectors.
- LCD assembly.
- System board.
| - LCD screen unreadable.
- Characters missing pixels.
- Screen abnormal.
- Wrong color displayed.
| - See important note for "LCD-related symptoms."
- Reseat all LCD connectors.
- LCD assembly.
- System board.
| | Horizontal or vertical lines displayed on LCD. | LCD assembly. | | Device address conflict. | - Load "Setup Defaults" in the BIOS Setup Utility.
- Backup battery.
- System board.
| | Allocation error for device. | - Load "Setup Defaults" in the BIOS Setup Utility.
- Backup battery.
- System board.
| | Failing bits: nnnn. | - DIMM.
- System board.
| | Invalid system configuration data. | - DIMM.
- System board.
| | I/O device IRQ conflict. | - Load "Setup Defaults" in the BIOS Setup Utility.
- Backup battery.
- System board.
| | Hibernation error. | - Restore the system configuration to what it was before the computer entered hibernation mode.
- If memory size has been changed, re-create the hibernation file.
| | Fan error. | - Fan.
- Thermal grease.
- System board.
| | Thermal sensing error. | System board. | | Cannot boot from any device. | Check the status of device which you want to boot from. - Device not found.
- The device you want to boot from.
- System board.
- Device Error.
- The device you want to boot from.
- System board.
- No valid operating system.
- Check that the operating system has no failure and is installed correctly.
- Reinstall the operation system.
- Excluded from boot order.
- Enter the BIOS Setup Utility and add the device in boot order.
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If you are unable to find what you are looking for, please do try the following options:
1.
Lenovo Assisted Search 2.
Product usage and general troubleshooting tips 3.
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| Country Availability |
| Available | Worldwide
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Document ID
: HT004232
Legacy Document ID
: MIGR-73957
Last Updated
:
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