Screen message Probable cause Recommended action
511—CPU. CPU A, or CPU B
Fan not detected
Fan is not connected or is defective. 1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
512—Chassis, rear chassis, or
front chassis fan not detected
Fan is not connected or it might be
defective.
1. Reseat the chassis, rear chassis, or front chassis
fan cable.
2. Reseat the chassis, rear chassis, or front
chassis fan.
3. Replace the chassis, rear chassis, or front
chassis fan.
513—Memory fan not
detected
Missing or disconnected memory fan. 1. Ensure the memory fan is installed.
2. Ensure proper memory fan connections.
514—CPU or Chassis Fan not
detected
CPU or chassis fan is missing, is not
connected, or is defective.
1. Verify that the processor or chassis fan is installed
and connected properly.
2. Replace the processor fan or the chassis fan.
515—CPU Overtemp ocurrred Insufficient processor cooling or
processor defect.
1. If necessary, add a heatsink to the processor and
ensure proper operation.
2. Replace the processor.
516—PCI fan not detected Missing PCI fan or disconnected fan
cable.
●
Add a PCI fan if necessary.
●
Verify proper PCI fan cable connection and
operation.
517—Low power CPU
heatsink(s) detected for high
power CPUs
Inadequate heatsink is installed. Replace the low power heatsink with a high power
heatsink.
518—Power supply wattage
insufficient for hardware
configuration
Workstation configuration requires
more power than the power supply can
provide.
●
Reduce the workstation power consumption.
●
Replace the power supply with a high output
power supply.
601—Diskette Controller Error Diskette controller circuitry or diskette
drive circuitry incorrect.
1. Run the Computer Setup (F10) utility.
2. Verify cabling and replace defective cables if
necessary.
3. Clear CMOS.
4. Replace the diskette drive.
5. Replace the system board.
605—Diskette Drive Type
Error
Mismatch in drive type. 1. Run the Computer Setup (F10) Utility.
2. Disconnect any other diskette controller devices
(tape drives).
3. Clear the CMOS.
610—External Storage Device
Failure
External storage device is not
detected, is improperly connected, or
is defective.
1. Verify that the external device is present and
connected properly.
2. Replace the external device.
Table 5-18  POST error messages  (continued)
ENWW POST error messages 141