
Table 4. Beep symptoms (continued)
Symptom or error | FRU or action, in sequence | |
|
|
|
Two short beeps and a blank screen. | 1. | System board. |
| 2. | DIMM. |
|
| |
Two or more beeps, or a continuous beep. Operating | If a | |
system starts successfully. | On LAN 2 in BIOS Setup Utility is disabled. | |
|
|
|
Three short beeps, pause, three more short beeps, and | 1. | DIMM. |
one short beep. | 2. | 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 | |
|
|
|
|
|
|
Table 5. |
|
|
|
| |
Symptom or error | FRU or action, in sequence | |
|
|
|
No beep, | 1. | Make sure that every connector is connected |
POST. |
| tightly and correctly. |
| 2. | DIMM. |
| 3. | System board. |
|
|
|
No beep, | 1. | Reseat DIMM. |
POST. | 2. | System board. |
| ||
|
| |
The | A | |
| Type the password and press Enter. | |
|
| |
The | A | |
| press Enter. | |
|
|
|
|
|
|
Important: The TFT LCD for the notebook computer contains many
If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.
Notes:
• This policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later.
Chapter 4. Related service information 47