Service and Maintain

Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
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 103.)
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
malfunctioned.
1. Reseat CPU fan.
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 not
connected or may have malfunctioned.
1. Reseat chassis, rear chassis, or front
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 have
malfunctioned.
1. Reseat front chassis fan.
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
have malfunctioned.
1. Reseat CPU or chassis fan.
2. Reseat fan cable.
3. Replace CPU or chassis fan.
515-Power Supply fan not detected Power supply fan is not connected or may have
malfunctioned.
1. Reseat power supply fan.
2. Reseat fan cable.
3. Replace power supply fan.
660-Display cache is detected unreliable Integrated graphics controller display cache is
not working properly and will be disabled.
Replace system board if minimal graphics
degrading is an issue.
912-Computer Cover Has Been Removed Since
Last System Startup
Computer cover was removed since last system
startup.
No action required.
917-Front Audio Not Connected Front audio connector has been detached or
unseated from motherboard.
Reconnect or replace front audio cable.
918-Front USB Not Connected Front USB harness has been detached or
unseated from motherboard.
Reconnect or replace front USB harness.
1151-Serial Port A Address Conflict Detected Both external and internal serial ports are
assigned to COM1.
1. Clear CMOS. (See Appendix B,
Password
Security and Resetting CMOS
on page 103.)
2. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
96 Chapter 10 POST Error Messages