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.

 

 

 

 

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 on page 61.)

 

 

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.

512-Chassis, Rear Chassis, or Front Chassis Fan not Detected

Chassis, rear chassis, or front chassis fan is 1.

Reseat chassis, rear chassis, or front

not connected or may have malfunctioned.

chassis fan.

 

 

2.

Reseat fan cable.

 

 

3.

Replace chassis, rear chassis, or front

 

 

 

chassis fan.

 

 

 

 

514-CPU or Chassis Fan not Detected

CPU or chassis fan is not connected or may

1.

Reseat CPU or chassis fan.

 

have malfunctioned.

2.

Reseat fan cable.

 

 

 

 

3.

Replace CPU or chassis fan.

 

 

 

 

601-Diskette Controller Error

Diskette controller circuitry or floppy drive

1.

Check and/or replace cables.

 

circuitry incorrect.

2.

Clear CMOS. (See Appendix B,

 

 

 

 

 

Password Security and Resetting

 

 

 

CMOS on page 61.)

 

 

3.

Replace diskette drive.

 

 

4.

Replace the system board.

 

 

 

 

605-Diskette Drive Type Error

Mismatch in drive type.

1.

Disconnect any other diskette controller

 

 

 

devices (tape drives).

 

 

2.

Clear CMOS. (See Appendix B,

 

 

 

Password Security and Resetting

 

 

 

CMOS on page 61.)

 

 

 

660-Display cache is detected unreliable

Integrated graphics controller display cache

Replace system board if minimal graphics

 

is not working properly and will be disabled.

degrading is an issue.

 

 

 

 

ENWW

POST Numeric Codes and Text Messages 53