Beep and no beep symptoms - ThinkPad A2*, T2*
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Note: The most likely cause is listed first, in boldface type. |
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 POST error. | | Two short beeps with blank screen | | | Two or more beeps, or a continuous beep. Operating System starts successfully. | If a Mini PCI Ethernet card is installed, confirm that Alert On LAN 2 in BIOS Setup Utility is disabled. | Three short beeps, pause, three more short beeps, and one short beep. | | | One short beep, pause, three short beeps, pause, three more short beeps, and one short beep. | Only cursor appears | Reinstall operating system. |
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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.
| No beep during POST, but system runs correctly | Speaker. | The power-on password prompt | A power-on password or a supervisor password is set. Type the password and press Enter. | The hard-disk password prompt | A hard-disk password is set. Type the password and press Enter. | The DOS full screen looks smaller. | Start the ThinkPad Configuration program and set the Screen expansion function. |
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| Country Availability |
| Available | Worldwide
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Document ID
: HT036617
Legacy Document ID
: MIGR-4K7KB7
Last Updated
:
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