Owners Manual

Troubleshooting

Diagnostic LEDs

NOTE: The diagnostic LEDs only serve as an indicator of the progress through the

POST process. These LEDs do not indicate the problem that caused the POST

routine to stop.

The diagnostic LEDs are located on the front of the chassis next to the power button.

These diagnostic LEDs are only active and visible during the POST process. Once the

operating system starts to load, they turn off and are no longer visible.

The system now includes pre-POST and POST LEDs in an attempt to help pinpointing a

possible problem with the system easier and more accurate.

NOTE: The diagnostic lights will blink when the power button is amber or off, and

will not blink when it is blue. This has no other significance.

Light Pattern

Problem Description Troubleshooting

Steps

Diagnostic LEDs Power Button LED

The computer is

either turned off or

is not receiving

power.

• Re-seat the

power cable in

the power

connector at the

back of the

computer and

the electrical

outlet.

• Bypass power

strips, power

extension

cables, and

other power

protection

devices to verify

that the

computer turns

on properly.