Diagnostics; Diagnostic Led Codes - Dell Latitude E6420 Owner's Manual

Diagnostics

Diagnostic LED Codes

The following table shows the possible LED codes that may display when your
computer is unable to complete a power on self test.
Appearance
Stora Powe Wirel
ge r LED
LED
Blinki Solid Solid The micro-
ng
Solid Blinki Solid Memory is
ng
Blinki Blinki Blinki
ng ng
Blinki Blinki Solid Video card error
ng ng
Blinki Blinki
ng ng
Description
ess
LED
controller is
handing control of
the system to the
processor. This
code persists if no
processor is
detected.
detected but has
errors.
System board
ng error
Off Keyboard error
Next Step
Replace the processor.
1. Re-seat the memory.
2. If two modules are installed,
remove one and test. Try the
other module in the same slot
and test. Test the other slot
with both modules.
3. Replace the memory.
4. Replace the system board.
Replace the system board.
Replace the system board.
1. Re-seat the keyboard cable.
2. Replace the keyboard.
38
141