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

Control panel message

Description

Recommended action

 

 

 

 

301-Keyboard Error

Keyboard failure.

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.

 

 

 

 

303-Keyboard Controller Error

I/O board keyboard controller.

1.

Reconnect keyboard with computer

 

 

 

turned off.

 

 

2.

Replace the system board.

 

 

 

 

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.

 

 

 

 

404-Parallel Port Address Conflict Detected

Both external and internal ports are assigned

1.

Remove any parallel port expansion

 

to parallel port X.

 

cards.

 

 

2.

Clear CMOS. (See Appendix B,

 

 

 

Password Security and Resetting

 

 

 

CMOS.)

 

 

3.

Reconfigure card resources and/or run

 

 

 

Computer Setup.

 

 

 

410-Audio Interrupt Conflict

IRQ address conflicts with another device.

Enter Computer Setup and reset the IRQ in

 

 

Advanced > Onboard Devices.

 

 

 

411-Network Interface Card Interrupt Conflict

IRQ address conflicts with another device.

Enter Computer Setup and reset the IRQ in

 

 

Advanced > Onboard Devices.

 

 

 

 

501-Display Adapter Failure

Graphics display controller.

1.

Reseat the graphics card (if applicable).

 

 

2.

Clear CMOS. (See Appendix B,

 

 

 

Password Security and Resetting

 

 

 

CMOS.)

 

 

3.

Verify monitor is attached and turned

 

 

 

on.

 

 

4.

Replace the graphics card (if possible).

 

 

 

510-Flash Screen Image Corrupted

Flash Screen image has errors.

Reflash the system ROM with the latest BIOS

 

 

image.

 

 

 

 

511-CPU, CPUA, or CPUB Fan not Detected

CPU fan is not connected or may have

1.

Reseat CPU fan.

 

malfunctioned.

2.

Reseat fan cable.

 

 

 

 

3.

Replace CPU fan.

 

 

 

 

52 Appendix A POST Error Messages

ENWW

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HP dc5750 manual Advanced Onboard Devices