HP Z1 Maintenance And Service Manual page 98

Table 4-9 POST error messages (continued)
Screen message
516—MXM fan not detected
517—Memory fan not
detected
530—Left DMIC cable not
connected.
531—Right DMIC cable not
connected.
532—Side I/O board not
connected.
533—Rear I/O USB/Audio
cable not connected.
534—Rear I/O DP/LAN cable
not connected.
535—LED Backlight cable not
connected.
536—LCD DP cable not
connected.
537—Bluetooth® module not
connected.
538—Panel I/O cable not
connected.
912—Computer Cover Has
Been Removed Since Last
System Start Up
922—Fatal error on PCIe slot
X
925—Fatal Misc error
88 Chapter 4 Diagnostics and troubleshooting
Probable cause
MXM fan missing, disconnected, or
defective.
Memory fan missing, disconnected,
or defective.
Left Dmic cable is not connected to
the system board or to the left Dmic.
Right Dmic cable is not connected
to the system board or to the right
Dmic.
Side I/O board is missing or is not
connected.
The Rear I/O USB/Audio cable
between the system board and
Rear I/O board is missing or not
connected.
The Rear I/O DP/LAN cable
between the system board and
Rear I/O board is missing or not
connected.
The LED Sync/backlight cable
between the system board and the
LCD panel is missing or not
connected.
The LCD DP cable between the
system board and the LCD panel is
missing or not connected.
The Bluetooth module is missing or
not connected.
The Panel I/O cable is missing or
not connected.
N/A
Fatal error occurred in the
designated slot.
A fatal miscellaneous chipset error
was detected.
Recommended action
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
1. Reseat the cable.
2. Replace the cable.
1. Reseat the cable.
2. Replace the cable.
1. Reseat the Side I/O board.
2. Replace the Side I/O board.
3. Replace the system board.
1. Reseat the cable.
2. Replace the cable.
1. Reseat the cable.
2. Replace the cable.
1. Reseat the cable.
2. Replace the cable.
1. Reseat the cable.
2. Replace the cable.
1. Replace or reconnect the missing
Bluetooth module.
2. Replace or reseat the missing module
cable.
1. Reseat the cable.
2. Replace the cable.
No action required.
Move the card to a different slot. If the problem
persists, replace the card.
Contact HP Support.