HP xw9400 Service And Technical Reference Manual page 145

Table 5-18 POST error messages (continued)
Screen Message
923–Non fatal error on slot #
1155–Serial Port Address
Conflict Detected.
1201–System Audio Address
Conflict Detected
1720 SMART Hard Drive
Detect Imminent Failure
1800–Temperature Alert
1801–Microcode Update Error
ENWW
Probable Cause
A PCI or PCIe non-fatal error condition
occurred for the device in the
designated slot.
Both external and internal serial ports
are assigned to same IRQ.
Device IRQ address conflicts with
another device. (Usually due to an
add-in audio card.)
Hard drive is about to fail. (Some hard
drives have a firmware patch that will
fix an erroneous error message.)
Internal temperature exceeds
specification.
Missing or Invalid Processor
Microcode Update.
Recommended Action
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Reseat the card.
2. Try moving card to a different slot.
3. If the problem persists, replace the card.
1. Remove any COM port expansion cards.
2. Clear CMOS by pressing the Clear CMOS button
on the system board.
3. Reconfigure card resources and run Computer
Setup (F10 Setup).
4. Run Computer Setup or Windows utilities.
Reset the IRQ.
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Determine if hard drive is giving correct error
message.
2. Run the Drive Protection System test if applicable.
3. Apply firmware patch if applicable
(see http://www.hp.com/support).
4. Back up contents and replace hard drive.
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Check that workstation air vents are not blocked
and that the cooling fan is running.
2. Verify processor speed selection.
3. Replace the processor.
4. Replace the system board.
Upgrade BIOS to the current version.
POST error messages 137