3Com NETBuilder II DPE 80 Manual page 17

Table 2-3 Error indications of LEDs
G G Y
- - Y
- - Y
- - Y
- - Y
- - Y
- - Y
- - Y
- - Y
- G -
- G -
- G -
- G -
G - -
G = green
Y = yellow
x = any value
- = off
F = flashing
STATUS
G G G G G
- - - G -
- - G - -
- - G G -
- G - x -
G - - x -
G - G x -
G G - x -
G G G x -
- G - x -
- G G x -
G G - x -
G G G x -
x x x x x
Meaning
Y Board hung very early in firmware load
Return module for repair.
YF DRAM test failed
Reseat or replace SIMM.
YF Firmware load failed
Return module for repair.
YF ATTENTION buttons pressed
Reset system to reboot.
G Hang during firmware initialization
G Hang during board-level tests
Return module for repair.
YF Corebus loopback test failed
Reseat DPE.
YF Serial port or shared memory test failed
Return module for repair.
YF FPROM contents corrupted
Return module for repair.
YF Unable to load bridge/router image; unable to load from
flash memory, or TFTP get failed
Replace flash memory card with a backup or verify TFTP
parameters and setup.
YF No valid bridge/router image file found; bad checksum or
magic number
Replace flash memory card with a backup.
YF No valid bridge/router image; unable to load
Replace flash memory card with a backup.
G Hang during bridge/router initialization
YF Bridge/router software has crashed and entered the debug
monitor, as specified by the RA command in the boot
monitor or by the SysconF command in the software.
LED Patterns 2-3