Troubleshooting guide

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Temperature sensors
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Cables (front/rear panels, audio, and USB ports)
Find additional information about POST error messages in the Service and Technical Reference
Guide, which is available at
http://www.hp.com/support/workstation_manuals.
Basic troubleshooting
This section provides guidance on troubleshooting problems that you might encounter during the initial
setup process. Additional troubleshooting information is available in the Service and Technical
Reference Guide at
http://www.hp.com/support/workstation_manuals.
General problems
You might be able to easily resolve the general problems described in this section. If a problem persists
and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation,
contact an HP customer care center, or contact an authorized dealer or reseller. For a list of support
telephone numbers for your region, visit
http://www.hp.com/support, select your region, and click
Contact HP in the upper-left corner.
Table 4-1 General installation problems
Problem Cause Solution
Workstation appears locked
up and will not turn off when
the power button is pressed.
Software control of the
power switch is not
functional.
Press and hold the power button for at least four seconds until the
workstation turns off.
Workstation will not respond
to USB keyboard or mouse.
Workstation is in
Standby mode.
Press the power button to resume from standby mode.
CAUTION: When attempting to resume from standby mode, do not hold
down the power button for more than four seconds. Otherwise, the
workstation shuts down and you might lose your data.
Workstation date and time
display is incorrect.
RTC (real-time clock) battery
might need to be replaced.
NOTE: Connecting the
workstation to a live AC
outlet prolongs the life of the
RTC battery.
Reset the date and time using Computer Setup (F10). If the problem
persists, replace the RTC battery. See the Service and Technical
Reference Guide for instructions on installing a new battery, or contact
an authorized dealer or reseller for RTC battery replacement.
Workstation pauses
periodically.
Network driver is loaded and
no network connection is
established.
Establish a network connection, or use Computer Setup (F10) to disable
the network controller.
Cursor will not move using
the arrow keys on the
keypad.
The Num Lock key
might be on.
Press the Num Lock key. The Num Lock light should not be on if you want
to use the arrow keys. The Num Lock key can be disabled (or enabled)
in Computer Setup (F10).
Cannot remove workstation
cover or access panel.
Solenoid hood lock, featured
on some systems, is locked.
Unlock the solenoid hood lock using Computer Setup (F10). The solenoid
hood lock FailSafe Key, a device for manually disabling the solenoid hood
lock, is available from HP. You will need the FailSafe Key in case of
forgotten password, power loss, or workstation malfunction. (This solution
not applicable to the xw8000/xw9000 series.)
The panel is locked
(xw6000/xw8000/xw9000
series).
Use the key located on the back of the unit to unlock the panel.
26 Chapter 4 Troubleshooting ENWW