HP Z230 Maintenance And Service Manual page 108

Screen message
525—Front chassis fan(2) not
detected
526—CPU Liquid Cooling
pump not detected
527—CPU Liquid Cooling
pump (2) not detected
528—CPU requires Liquid
Cooling solution
529—Unsupported WiFi
Device(s) Detected
917—Front Audio Not
Connected
918—Front USB Not
Connected
921—Front USB Not
Connected
922—Front USB 2 Not
Connected
923—Fatal IRPP error.
924—Fatal IIO error
925—Fatal Misc. Error
927—Fatal error on DIMM in
slot CPU X DIMM Y
928—Fatal error occurred in
the designated slot.
929—Fatal MCA Errorr
939—Front USB 3.0 Not
Connected
940—Front 1394 Not
Connected
98 Chapter 4 Diagnostics and troubleshooting
Probable cause
Front chassis fan(2) missing,
disconnected, or defective.
Liquid cooling pump on CPU1 is not
detected.
Liquid cooling pump on CPU2 is not
detected.
Invalid system configuration.
An unsupported WiFi device has
been installed into an internal slot.
Front Audio mechanism is missing or
is not connected.
Front USB mechanism is missing or
is not connected.
Front USB mechanism is missing or
is not connected.
Front USB 2 mechanism is missing or
is not connected.
A fatal miscellaneous chipset error is
setected.
Fatal multibit ECC error detected on
the DIMM in the slot labeled DIMM Y
(where Y is a number), as labeled on
the system board.
Fatal error occurred in the designated
slot.
An MCA condition is detected on the
system.
Front USB 3.0 mechanism is missing
or is not connected.
Front 1394 mechanism is missing or
is not connected.
Recommended action
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
1. Reseat the pump cable.
2. Replace the pump.
1. Reseat the pump cable.
2. Replace the pump.
1. Remove incorrect processor and reinstall original
processor.
2. Remove incorrect cooling solution and reinstall
original liquid cooling solution.
Remove the unsupported device.
1. Replace or reconnect the missing front audio
mechanism to the system board.
2. Reseat or replace the missing mechanism cable.
1. Replace or reconnect the missing Front USB
mechanism to the system board.
2. Reseat or replace the missing mechanism cable.
1. Replace or reconnect the missing Front USB
mechanism to the system board.
2. Reseat or replace the missing mechanism cable.
1. Replace or reconnect the missing Front USB 2
mechanism to the system board.
2. Reseat or replace the missing mechanism cable.
Potential system problem; contact HP Support.
Potential system problem; contact HP Support.
Replace the DIMM in the identified slot.
Move the card to a different slot. If the problem
persists, replace the card.
1. Replace or reconnect the missing Front USB 3.0
mechanism to the system board.
2. Reseat or replace the missing mechanism cable.
1. Replace or reconnect the missing Front 1394
mechanism to the system board.