Table 4-9 POST error messages (continued)
Screen message Probable cause Recommended action
510—Splash Screen image
corrupted
Splash Screen image has errors. Update system UEFI.
511—CPU Fan not detected Fan is not connected or is defective. 1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
515—CPU Overtemp occurred Insufficient processor cooling or
processor defect.
1. If necessary, add a heatsink to the
processor and ensure proper operation.
2. Replace the processor.
516—MXM fan not detected MXM fan missing, disconnected, or
defective.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
517—Memory fan not
detected
Memory fan missing, disconnected,
or defective.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
530—Left DMIC cable not
connected.
Left Dmic cable is not connected to
the system board or to the left Dmic.
1. Reseat the cable.
2. Replace the cable.
531—Right DMIC cable not
connected.
Right Dmic cable is not connected to
the system board or to the right
Dmic.
1. Reseat the cable.
2. Replace the cable.
532—Side I/O board not
connected.
Side I/O board is missing or is not
connected.
1. Reseat the Side I/O board.
2. Replace the Side I/O board.
3. Replace the system board.
533—Rear I/O USB/Audio
cable not connected.
The Rear I/O USB/Audio cable
between the system board and Rear
I/O board is missing or not
connected.
1. Reseat the cable.
2. Replace the cable.
534—Rear I/O DP/LAN cable
not connected.
The Rear I/O DP/LAN cable
between the system board and Rear
I/O board is missing or not
connected.
1. Reseat the cable.
2. Replace the cable.
535—LED Backlight cable not
connected.
The LED Sync/backlight cable
between the system board and the
LCD panel is missing or not
connected.
1. Reseat the cable.
2. Replace the cable.
536—LCD DP cable not
connected.
The LCD DP cable between the
system board and the LCD panel is
missing or not connected.
1. Reseat the cable.
2. Replace the cable.
90 Chapter 4 Diagnostics and troubleshooting