Compaq D51s Troubleshooting Guide - Page 64

POST Diagnostic Keyboard LEDs, Front Panel LEDs and Audible Codes

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Post Error Messages POST Diagnostic Keyboard LEDs, Front Panel LEDs and Audible Codes This section covers the keyboard and front panel LED codes as well as the audible codes that may occur during POST that do not necessarily have an error code or text message associated with them. ✎ If your system is equipped with a Universal Serial Bus (USB) keyboard, you may hear the beep sequences for some of the keyboard light error codes, but you may not see the flashing keyboard lights. Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes Activity Audible Beeps 1L, 3S* Flashing Caps Lock LED on Keyboard. 1L, 2S* *L = Long, S = Short Probable Cause System ROM is bad; system is running in Failsafe Boot Block mode. Graphics controller not present or incorrectly initialized. Recommended Action Reflash the ROM using a ROMPaq diskette. See the "Failsafe Boot Block ROM" section of the Desktop Management Guide. 1. Clear CMOS. 2. If graphics card has been added, remove and reseat. 3. Reseat riser board if applicable. A-14 Troubleshooting Guide

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A–14
Troubleshooting Guide
Post Error Messages
POST Diagnostic Keyboard LEDs, Front Panel LEDs
and Audible Codes
This section covers the keyboard and front panel LED codes as well
as the audible codes that may occur during POST that do not
necessarily have an error code or text message associated with them.
✎
If your system is equipped with a Universal Serial Bus (USB)
keyboard, you may hear the beep sequences for some of the keyboard
light error codes, but you may not see the flashing keyboard lights.
Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes
Activity
Beeps
Probable Cause
Recommended Action
Audible
1L, 3S*
System ROM is bad;
system is running
in Failsafe Boot
Block mode.
Reflash the ROM using a
ROMPaq diskette. See the
“Failsafe Boot Block ROM”
section of the
Desktop
Management Guide.
Flashing
Caps
Lock
LED on
Keyboard.
1L, 2S*
Graphics controller not
present or incorrectly
initialized.
1. Clear CMOS.
2. If graphics card has been
added, remove and
reseat.
3. Reseat riser board if
applicable.
*L = Long, S = Short