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Screen message Probable cause Recommended action
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.
611—Primary Floppy Port
Address Assignment Conflict
The flexible disk drive is configured at
a previously assigned address.
Select a new address for the flexible disk drive.
912—Computer Cover Has
Been Removed Since Last
System Start Up
N/A No action required.
913—Front 1394 Not
Connected
Front 1394 device cable is
disconnected from the system board.
Reconnect the 1394 cable and restart.
916—Power Button Not
Connected
Power button cable is disconnected
from the system board.
Reconnect the cable and restart.
917—Front Audio Not
Connected
Front audio mechanism is missing or is
not connected.
1. Reconnect or replace the front audio cable.
2. Reconnect or replace the front audio mechanism.
918—Front USB Not
Connected
Front USB is missing or is not
connected.
1. Reconnect the Front USB connector to the system
board.
2. Reconnect or replace the front USB mechanism.
920—Fatal error on QPI link X Fatal error detected on QPI link x,
where x is 0 or 1. This type of error is
identified on the line following.
Potential system board problem; contact HP Support.
921—Fatal error on QPI
Protocol link X
Fatal error detected in QPI link x
protocol, where x is 0 or 1. This type of
error is identified on the line following.
Potential system board problem; contact HP Support.
922—Fatal error on PCIe slot
X
Fatal error occurred in the designated
slot.
Move the card to a different slot. If the problem persists,
replace the card.
923—Fatal error on ESI port 0 A fatal error occurred on ESI port 0.
slot.
Verify that the ESI port device is connected and working
properly.
924—Fatal error on IOH core
X
Fatal error detected on IOH core x,
where x is 0 or 1. This type of error is
identified on the line following.
Potential system board problem; contact HP Support.
Table 6-10 POST error messages (continued)
ENWW Diagnostic codes and errors 199