Getting Started Guide

Getting Started
Interpreting Diagnostic Lights and Audible Codes
This section covers the front panel light (LED) codes as well as the audible codes that
may occur before or during the Power-On Self-Test (POST) that do not necessarily
have an error code or text message associated with them.
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front
panel of the computer and refer to the following table to determine the front panel
LED codes.
Recommended actions in the following table are listed in the order in which they
should be performed.
Diagnostic Front Panel Lights (LEDs) and Audible Codes
Activity Beeps Possible Cause Recommended Action
Green Power LED
On.
None Computer on. None
Green Power LED
flashes every two
seconds.
None Computer in Suspend
to RAM mode (select
models only) or
normal Suspend
mode.
None
Green Power LED
flashes four times,
once per second.
None Computer in Suspend
to Disk or “Hibernate”
mode.
None
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