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
177620-006.book Page 14 Thursday, March 14, 2002 3:16 PM