Table 11-1Numeric Codes and Text Messages (continued)

Control panel message

Description

Recommended action

 

 

 

 

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.

 

 

 

 

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 305.)

 

 

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

CPU fan is not connected or may have

1.

Reseat CPU fan.

Detected

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.

 

 

 

 

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.

 

 

 

 

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.

 

 

 

 

515-Power Supply fan not detected

Power supply fan is not connected or may

1.

Reseat power supply fan.

 

have malfunctioned.

2.

Reseat fan cable.

 

 

 

 

3.

Replace power supply fan.

 

 

 

 

POST Numeric Codes and Text Messages 295