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 AC | Check power source. | AC adapter. | Check AC adapter. Remove |
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 the power status light does |
| notebook on. | not turn on, reprogram the | |
| Motherboard. | ||
| Unplug the AC adapter, | BIOS, and replace the top | |
| Display assembly. | ||
| remove the battery and any | case, replace the | |
| PC cards, press the reset | Hard drive. | motherboard. |
| button to turn notebook off, |
| If power status light turns on |
| then reconnect power and try |
| but display remains off, try |
| again. |
| external monitor. If monitor |
| Do not use touch pad while |
| shows successful boot, |
| booting or resuming. |
| replace display assembly. |
| Remove all but one SDRAM |
| If monitor shows activity but |
|
| BIOS does not complete, | |
| module and try again. |
| |
|
| replace display assembly. | |
| Reinsert any other SDRAM |
| |
|
| If 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, but | SDRAM module is installed. |
|
|
does not boot. |
|
|
|
Does not boot on | Make sure battery is properly | Battery or contacts. |
|
battery, but boots on | installed and fully charged. | Motherboard. |
|
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 drive. | Use BIOS Setup to check | Motherboard. | installed and connected |
| default boot order. |
| correctly. |
| Restart notebook. |
|
|
Troubleshooting and Diagnostics | Service Manual |