Turns on steadily or blinks to indicate battery charge status.
Turns on when wireless networking is enabled.
Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately blinking amber light and white | An unauthenticated or unsupported |
light | your laptop. |
Alternately blinking amber light with steady | Temporary battery failure with AC adapter present. |
white light |
|
Constantly blinking amber light | Fatal battery failure with AC adapter present. |
Light off | Battery in full charge mode with AC adapter present. |
White light on | Battery in charge mode with AC adapter present. |
Diagnostic Beep Codes
The following table shows the possible beep codes that may be emitted by the computer when your computer is unable to complete a power on self test.
Table 7. Diagnostic Beep Codes
Beep | Description | Possible Cause/Troubleshooting | |
|
|
| Steps |
|
|
| |
1 | BIOS ROM checksum in progress of | System board failure, covers BIOS | |
| failure. |
| corruption or ROM error |
2 | No RAM detected | If no memory is detected, you can | |
|
|
| perform the following steps |
|
|
| • reseat the memory if an |
|
|
| additional memory is available |
|
|
| • install that memory if the |
|
|
| issue persists |
|
|
| • issue with the memory |
|
|
| connector |
3 | • Chipset Error (North and | System board failure | |
|
| ||
|
| South Bridge Chipset, |
|
|
| DMA/IMR/Timer Error) |
|
| • |
| |
| • | Gate A20 failure |
|
| • Super I/O chip failure |
| |
| • | Keyboard controller test |
|
|
| failure |
|
4 | RAM Read/Write failure | If no memory is detected, you can | |
|
|
| perform the following steps |
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