HP Pro 110 manual Test under Storage DPS Self-test

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

Control panel message	Description	Recommended action
304-Keyboard or System Unit Error	Keyboard failure.	1.	Reconnect the keyboard with computer
			turned off.
		2.	Ensure that none of the keys are
			depressed.
		3.	Replace the keyboard.
		4.	Replace the system board.
510-Flash Screen Image Corrupted	Flash Screen image has errors.	Reflash the system ROM with the latest
		BIOS image.
511-CPU Fan not Detected	CPU fan is not connected or may have	1.	Reseat CPU fan.
	malfunctioned.	2.	Reseat fan cable.
		3.	Replace CPU fan.
512-Rear Chassis Fan not Detected	Rear chassis fan is not connected or may	1.	Reseat rear chassis fan.
	have malfunctioned.	2.	Reseat fan cable.
		3.	Replace rear chassis fan.
513-Front Chassis fan not detected	Front chassis fan is not connected or may	1.	Reseat front chassis fan.
	have malfunctioned.	2.	Reseat fan cable.
		3.	Replace front chassis fan.
912-Computer Cover Has Been Removed	Computer cover was removed since last	No action required.
Since Last System Startup	system startup.
917-Front Audio Not Connected	Front audio harness has been detached or	Reconnect or replace front audio harness.
	unseated from motherboard.
921-Device in PCI Express slot failed to	There is an incompatibility/problem with this	Try rebooting the system. If the error
initialize	device and the system or PCI Express Link	reoccurs, the device may not work with this
	could not be retrained to an x1.	system
1720-SMART Hard Drive Detects Imminent	Hard drive is about to fail. (Some hard	1.	Determine if hard drive is giving correct
Failure	drives have a hard drive firmware patch that		error message. Enter Computer Setup
	will fix an erroneous error message.)		and run the Drive Protection System
			test under Storage > DPS Self-test.
		2.	Apply hard drive firmware patch
			if applicable. (Available at
			http://www.hp.com/support.)
		3.	Back up contents and replace hard
			drive.
1801-Microcode Patch Error	Processor is not supported by ROM BIOS.	1.	Upgrade BIOS to proper version.
		2.	Change the processor.

1802-Processor Not Supported	Recently installed processor is not
	supported by the system.

Install a processor supported by your system.

68 Appendix A POST Error Messages