Light Pattern
Problem Description
Troubleshooting
Steps
Diagnostic LEDs
Power Button LED
If the computer
boots, add the
peripheral cards
back one by one
until you find the
bad one.
A possible system
board failure has
occurred.
•
Disconnect all
internal and
external
peripherals, and
re-start the
computer. If the
computer boots,
add the
peripheral cards
back one by one
until you find the
bad one.
•
If the problem
persists, the
system board is
faulty.
A possible coin cell
battery failure has
occurred.
Remove the coin
cell battery for one
minute, reinstall the
battery, and restart.
The computer is in a
normal
on
condition.
The diagnostic
lights are not lit
after the computer
successfully boots
to the operating
system.
Ensure that the
display is connected
and powered on.
A possible
processor failure
has occurred.
Re-seat the
processor.
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