HP dc7608 manual Advanced Onboard Devices

POST Error Messages

POST Error Messages (Continued)

Screen Message	Probable Cause	Recommended Action
304-Keyboard or	Keyboard failure.	Reconnect the keyboard with computer
System Unit Error		turned off.
		Ensure that none of the keys are
		depressed.
		Replace keyboard.
		Replace system board.
404-Parallel Port	Both external and internal	Remove any parallel port expansion
Address Conflict	ports are assigned to	cards.
Detected	parallel port X.	Clear CMOS.
		Reconfigure card resources and/or run
		Computer Setup.
410-Audio Interrupt	IRQ address conflicts with	Enter Computer Setup and reset the IRQ
Conflict	another device.	in Advanced > Onboard Devices.
411-Network Interface	IRQ address conflicts with	Enter Computer Setup and reset the IRQ
Card Interrupt Conflict	another device.	in Advanced > Onboard Devices.
501-Display Adapter	Graphics display	Reseat the graphics card (if applicable).
Failure	controller.	Clear CMOS.
		Verify that the monitor is attached and
		turned on.
		Replace the graphics card (if
		applicable).
510-Splash Screen	Splash Screen image has	Reflash the system ROM with the latest
image corrupted	errors.	BIOS image
511-CPU, CPUA, or	Fan is not connected or	Reseat fan cable.
CPUB Fan not detected	may have malfunctioned.	Reseat the fan.
		Replace the fan.
512-Chassis, rear	Fan is not connected,	Reseat chassis, rear chassis, or front
chassis, or front chassis	may have malfunctioned.	chassis fan cable.
fan not detected		Reseat chassis, rear chassis, or front
		chassis fan.
		Replace chassis, rear chassis, or front
		chassis fan.
514-CPU or Chassis	CPU or chassis fan is not	Reseat CPU or chassis fan.
Fan not detected.	connected or may have	Reseat fan cable.
	malfunctioned.	Replace CPU or chassis fan.
601-Diskette Controller	Diskette controller	Run Computer Setup (F10 Setup).
Error	circuitry or floppy drive	Check and/or replace cables.
	circuitry incorrect.	Clear CMOS.
		Replace diskette drive.
		Replace the system board.

C–4 390742-002 Service Reference Guide, dc7600