If you cannot isolate the cause of a problem using the above diagnostic tools, use the suggestions in the following table to help find the problem.
Table
| Call Center: | Repair Center: | Repair Center: |
Symptom | Suggestions | Likely Causes | Comments |
To help determine likely causes of a problem, determine which replaceable modules are involved in the system function and what roles they play: see the figure on page
Startup
Does not boot on | Check power source. | AC adapter. | Check AC adapter. Remove |
AC or battery. | Press and hold power button | SDRAM module. | all but one SDRAM module |
| to turn notebook off, then | CPU module. | and try again. |
| press power button to turn | Switchboard PCA. | If power status light does not |
| notebook on. | turn on, reprogram BIOS, | |
| Motherboard. | ||
| Unplug AC adapter, remove | replace top case, replace | |
| Display assembly. | ||
| the battery and any PC cards, | motherboard. | |
| press reset button to turn | Hard drive. | If power status light turns on |
| notebook off, then reconnect |
| but display remains off, try |
| power and try again. |
| external monitor. If monitor |
| Do not use touch pad while |
| shows successful boot, |
| booting or resuming. |
| replace display assembly. If |
| Remove all but one SDRAM |
| monitor shows activity but |
|
| BIOS does not complete, | |
| module and try again. |
| |
|
| replace display assembly. If | |
| Reinsert any other SDRAM |
| |
|
| monitor is blank, replace | |
| module and try again. |
| |
|
| switchboard PCA, replace | |
|
|
| |
|
|
| motherboard. |
|
|
| If power status light and |
|
|
| display turn on, BIOS |
|
|
| completes, but OS does not |
|
|
| start from hard disk or floppy |
|
|
| drive, replace CPU module, |
|
|
| replace motherboard. If OS |
|
|
| starts from floppy drive, |
|
|
| reload hard drive, replace |
|
|
| hard drive. |
Beeps once, spins | Make sure at least one | SDRAM module. |
|
hard disk, repeats, | SDRAM module is installed. |
|
|
but does not boot. |
|
|
|
Does not boot on | Make sure battery is properly | Battery or contacts. |
|
battery, but boots | installed and fully charged. | Motherboard. |
|
on AC. | Check battery level on battery |
|
|
| LEDs. |
|
|
| Check battery contacts. If |
|
|
| available, try another battery. |
|
|
Does not boot from | Make sure floppy disk is | Floppy disk or floppy | Make sure floppy drive is |
floppy drive. | bootable. | drive. | installed and connected |
| Use BIOS Setup to check | Motherboard. | correctly. |
| default boot order. |
|
|
Does not boot from | Make sure CD is bootable. | CD/DVD drive. | Make sure CD/DVD is |
CD in CD/DVD | Use BIOS Setup to check | Motherboard. | installed and connected |
drive. | default boot order. |
| correctly. |
| Restart notebook. |
|
|
Troubleshooting and Diagnostics | Service Manual |