CHAPTER 4: Troubleshooting
Error Messages | FRU/Action Sequence | |
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Invalid System Configuration Data | ■ | Test or replace the BIOS ROM. |
| ■ | Test or replace the system board. |
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I/O device IRQ conflict | ■ | Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot |
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| the notebook. |
| ■ | Test or replace the CMOS battery, run the BIOS Setup Utility to |
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| reconfigure system time, then reboot the system. |
| ■ | Test or replace the system board. |
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Operating system not found | ■ | Run the BIOS Setup Utility and see if fixed disk and drive A: are |
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| properly identified. |
| ■ | Test or replace the diskette drive |
| ■ | Test or replace the hard disk drive |
| ■ | Test or replace the system board |
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No-beep error messages
| FRU/Action in Sequence | |
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No beep, | ■ | Test the power source (battery pack and power adapter). See “Testing |
is blank. |
| the power system” on page 141. |
| ■ | Make sure that every connector is connected tightly and correctly. |
| ■ | Reconnect the |
| ■ | Test or replace the LED board. |
| ■ | Test or replace the system board. |
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No beep,
■Test the power source (battery pack and power adapter). See “Testing the power system” on page 141.
■Reconnect the LCD connector
■Check the hard disk drive.
■Check the LCD inverter ID.
■Check the LCD cable.
■Test or replace the LCD inverter.
■Test or replace the LCD.
■Test or replace the system board.
No beep, | ■ | Reconnect the LCD connectors. |
is blank. But you can see POST on an external | ■ | Check the LCD inverter ID. |
CRT. | ■ | Check the LCD cable. |
| ■ | Test or replace the LCD inverter. |
| ■ | Test or replace the LCD. |
| ■ | Test or replace the system board. |
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No beep, | ■ | Make sure that every connector is connected tightly and correctly. |
blinking cursor shown on LCD during POST. | ■ | Test or replace the system board. |
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No beep during POST but system runs | ■ | Test or replace the speaker. |
correctly. | ■ | Test or replace the system board. |
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