Table
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| Repair Center: | Repair Center: |
Symptom | Call Center: Suggestions | Likely Causes | Comments |
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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. |
AC or battery | Press and hold power button to turn | SDRAM module. | Remove all but one |
| SDRAM module and try | ||
| notebook off, and then press power |
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| CPU module | again. | |
| button to turn notebook on. | ||
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| If the power status light | |
| Unplug the AC adapter, remove the | Switchboard PCA | |
| does not turn on, | ||
| battery and any PC cards, press the |
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| Motherboard | reprogram the BIOS, and | |
| reset button to turn notebook off, and | ||
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| replace the top case, | |
| then reconnect power and try again. | Display assembly | |
| replace the motherboard. | ||
| Do not use touch pad while booting | Hard drive | If power status light turns |
| or resuming. |
| on but display remains |
| Remove all but one SDRAM module |
| off, try external monitor. If |
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| monitor shows | |
| and try again. Reinsert any other |
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| successful boot, replace | |
| SDRAM module and try again. |
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| display assembly. | |
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| If monitor shows activity |
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| but BIOS does not |
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| complete, replace display |
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| assembly. If monitor is |
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| blank, replace |
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| switchboard PCA, |
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| replace motherboard. |
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| If power status light and |
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| display turn on, BIOS |
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| completes, but OS does |
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| not start from hard disk |
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| or floppy drive, replace |
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| CPU module, replace |
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| motherboard. If OS starts |
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| from floppy drive, reload |
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| hard drive, replace hard |
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| drive. |
Beeps once, spins | Make sure at least one SDRAM | SDRAM module |
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hard disk, repeats, | module is installed. |
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but does not boot |
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Does not boot on battery, | Make sure battery is properly | Battery or contacts |
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but boots on AC | installed and fully charged. Check | Motherboard |
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| battery level on battery LEDs. |
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| Check battery contacts. If available, |
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| try another battery. |
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Does not boot from | Make sure floppy disk is bootable. | Floppy disk or floppy drive | Make sure floppy drive is |
floppy drive | Use BIOS Setup to check default | Motherboard. | installed and connected |
| correctly. | ||
| boot order. |
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Does not boot from CD in | Make sure CD is bootable. | CD/DVD drive | Make sure CD/DVD is |
CD/DVD drive | Use BIOS Setup to check default | Motherboard | installed and connected |
| correctly. | ||
| boot order. |
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| Restart notebook. |
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Sluggish startup or | Use Tools tab in disk’s Properties | Hard drive |
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shutdown | sheet to check hard disk. Use Disk |
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| Defragmenter to optimize hard disk. |
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| Delete temporary and unneeded |
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| files. |
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Troubleshooting and Diagnostics | Service Manual |