Troubleshooting Guide
Table Of Contents
- Contents
- Computer Diagnostic Features
- Troubleshooting Without Diagnostics
- Safety and Comfort
- Before You Call for Technical Support
- Helpful Hints
- Solving General Problems
- Solving Power Supply Problems
- Solving Diskette Problems
- Solving Hard Drive Problems
- Solving MultiBay Problems
- Solving Display Problems
- Solving Audio Problems
- Solving Printer Problems
- Solving Keyboard and Mouse Problems
- Solving Hardware Installation Problems
- Solving Network Problems
- Solving Memory Problems
- Solving Processor Problems
- Solving CD-ROM and DVD Problems
- Solving Drive Key Problems
- Solving Internet Access Problems
- Solving Software Problems
- Contacting Customer Support
- POST Error Messages
- Password Security and Resetting CMOS
- Drive Protection System (DPS)
- Setting up Analog/Digital Audio Output
- Index
A–14 www.hp.com Troubleshooting Guide
POST Error Messages
POST Diagnostic Front Panel LEDs and
Audible Codes
This section covers the front panel LED codes as well as the audible
codes that may occur before or during POST that do not necessarily
have an error code or text message associated with them.
✎
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs
on the front panel of the computer and refer to the following table to
determine the front panel LED codes.
✎
Recommended actions in the following table are listed in the order in
which they should be performed.
Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps Possible Cause Recommended Action
Green Power LED
On.
None Computer on. None
Green Power LED
flashes every two
seconds.
None Computer in
Suspend to RAM
mode (select
models only) or
normal Suspend
mode.
None required. Press any key or move
the mouse to wake the computer.