POST Error Messages

POST Diagnostic Front Panel LEDs and Audible Codes

This section covers the front panel LED codes as well as the audible codes that may occur before or during 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 LEDs and Audible Codes

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

Green Power LED

None

Computer on.

None

On.

 

 

 

 

 

 

 

Green Power LED

None

Computer in

None required. Press any key or move

flashes every two

 

Suspend to RAM

the mouse to wake the computer.

seconds.

 

mode (select

 

 

 

models only) or

 

 

 

normal Suspend

 

 

 

mode.

 

 

 

 

 

A–14

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