HP 8200 A2W54UT#ABA, 6200 Pro H3D90USABA Table C-2Diagnostic Front Panel LEDs and Audible Codes

Table C-1Numeric Codes and Text Messages (continued)

Control panel message	Description	Recommended action
Invalid Electronic Serial Number	Electronic serial number is missing.	Enter the correct serial number in Computer
		Setup.

Network Server Mode Active and No	Keyboard failure while Network Server
Keyboard Attached	Mode enabled.

1.Reconnect keyboard with computer turned off.

2.Check connector for bent or missing pins.

3.Ensure that none of the keys are depressed.

4. Replace keyboard.

Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities.

Interpreting 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.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

NOTE: 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.

Not all diagnostic lights and audible codes are available on all models.

Table C-2Diagnostic Front Panel LEDs and Audible Codes

Activity	Beeps	Possible Cause	Recommended Action
Green Power LED On.	None	Computer on.	None

Green Power LED flashes every None two seconds.

Computer in Suspend to RAM mode (some models only) or normal Suspend mode.

None required. Press any key or move the mouse to wake the computer.

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 259