User manual
Table Of Contents
- System specifications
- System utilities
- Replacing notebook components
- Preventing static electricity discharge
- Preparing the work space
- Required tools
- Preparing the notebook
- Removing the battery
- Removing the bay cover
- Adding or replacing memory modules
- Replacing the wireless card
- Replacing the hard drive
- Replacing the optical drive
- Replacing the keyboard cover
- Replacing the multimedia board
- Replacing the keyboard
- Replacing the LCD panel assembly
- Replacing the palm rest
- Replacing the speakers
- Replacing the touchpad board
- Replacing the modem board
- Replacing the USB board
- Replacing the Bluetooth module
- Replacing the system board
- Replacing the cooling assembly
- Replacing the processor
- Replacing the LCD front panel
- Replacing the webcam
- Replacing the LCD
- Replacing the LCD panel hinge brackets
- Replacing the power button board
- Replacing the Kensington lock cap
- Replacing the microphone
- Replacing the antennas
- Replacing the LCD assembly lid
- Troubleshooting
- Connector locations
- FRU (Field-Replaceable Unit) list
- Test compatible components
- Online support information
CHAPTER 4: Troubleshooting
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Intermittent problems
Intermittent system hang problems can be caused by a variety of reasons that
have nothing to do with a hardware defect. These reasons include: cosmic
radiation, electrostatic discharge, or software errors. FRU replacement should be
considered only when a recurring problem exists.
To analyze an intermittent problem:
1 Run the advanced diagnostic test for the system board in loop mode at least
ten times.
• If any error is detected, replace the FRU.
• If no error is detected, do not replace any FRU.
2 Rerun the test to verify that there are no more errors.