HP Compaq dc7100 DT Reference Manual page 235

POST Error Messages
Screen Message
301-Keyboard Error
303-Keyboard
Controller Error
304-Keyboard or
System Unit Error
501-Display Adapter
Failure
510-Splash Screen
image corrupted
511-CPU, CPUA, or
CPUB Fan not detected
512-Chassis, rear
chassis, or front chassis
fan not detected
514-CPU or Chassis
Fan not detected.
601-Diskette Controller
Error
Service Reference Guide, dc7100
Probable Cause
Keyboard failure.
I/O board keyboard
controller.
Keyboard failure.
Graphics display
controller.
Splash Screen image has
errors.
Fan is not connected or
may have malfunctioned.
Fan is not connected,
may have malfunctioned.
CPU fan is not connected
or may have
malfunctioned.
Diskette controller
circuitry or floppy drive
circuitry incorrect.
361288-003
Recommended Action
Reconnect keyboard with computer
turned off.
Check connector for bent or missing
pins.
Ensure that none of the keys are
depressed.
Replace keyboard.
Reconnect keyboard with computer
turned off.
Replace the system board.
Reconnect the keyboard with computer
turned off.
Ensure that none of the keys are
depressed.
Replace keyboard.
Replace system board.
Reseat the graphics card (if applicable).
Clear CMOS.
Verify that the monitor is attached and
turned on.
Replace the graphics controller (if
applicable).
Install latest version of ROMPaq to
restore image.
Reseat fan cable.
Reseat the fan.
Replace the fan.
Reseat chassis, rear chassis, or front
chassis fan cable.
Reseat chassis, rear chassis, or front
chassis fan.
Replace chassis, rear chassis, or front
chassis fan.
Reseat CPU or chassis fan.
Reseat fan cable.
Replace CPU or chassis fan.
Run Computer Setup (F10 Setup).
Check and/or replace cables.
Clear CMOS.
Replace diskette drive.
Replace the system board.
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