Personal Computer Hardware Maintenance Manual
Table Of Contents
- Contents
- Chapter 1. About this manual
- Chapter 2. Safety information
- Chapter 3. General information
- Chapter 4. General checkout
- Chapter 5. Diagnostics
- Chapter 6. Using the Setup Utility
- Chapter 7. Symptom-to-FRU index
- Chapter 8. Replacing FRUs
- Locations
- Opening the computer cover
- Replacing the battery
- Replacing a memory module
- Replacing the adapter card
- Replacing the front audio and USB assembly
- Replacing the heat sink
- Replacing the microprocessor
- Replacing the system board
- Replacing the system fan
- Replacing the hard disk drive
- Replacing the optical drive
- Replacing the internal speaker
- Completing the FRU replacement
- Chapter 9. FRU lists
- Chapter 10. Additional service information
- Appendix. Notices

Diagnostic Error Code FRU/Action
415-XXX-XXX
Modem error
Remove the Modem and re-test the system
Beep symptoms
Beep symptoms are tones or a series of tones separated by pauses (intervals
without sound) during POST.
The following tables describes beep symptoms.
Beep Symptom FRU/Action
1, 2, or 3 beeps Reseat the memory modules. If the error
persists, replace the memory modules one at
a time until the failing module is
determined.
4, 5, 6, or 7 beeps
9, 10, or 11 beeps
Before replacing the system board, remove
any optional adapters (Express card, Modem
card, Media reader) and retry. If the problem
persists, replace the system board.
Otherwise, reinstall the optional adapters
one at a time until the failing adapter is
determined.
8 beeps Replace the system board.
Chapter 7. Symptom-to-FRU index 73










