HP xw4100 Setup And Troubleshooting Manual page 21

you can contact an HP customer care center, or you can 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
Workstation appears locked
up and will not turn off when
the power button is pressed.
Workstation will not respond
to USB keyboard or mouse.
Workstation date and time
display is incorrect.
Workstation appears to
pause periodically.
Cursor will not move using
the arrow keys on the
keypad.
Cannot remove workstation
cover or access panel.
Poor performance is
experienced.
System does not power on
and the LEDs on the front of
the workstation are not
blinking.
ENWW
Cause
Software control of the
power switch is not
functional.
Workstation is in Stand
by mode.
RTC (real-time clock) battery
may need to be replaced.
NOTE
Connecting the
workstation to a live
AC outlet prolongs
the life of the
RTC battery
Network driver is loaded and
no network connection is
established.
The Num Lock key
might be on.
Solenoid hood lock, featured
on some systems, is locked.
The panel is locked
(xw6000/xw8000/xw9000
series).
Processor is hot.
Hard drive is full.
The customer has memory
installed in a single channel
instead of in both channels.
System unable to power on.
Solution
Press and hold the power button for at least four seconds until the
workstation turns off.
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 will shut down and you will lose your
data.
First, 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.
Establish a network connection, or use Computer Setup (F10) to disable
the network controller.
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).
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. (Not
applicable to the xw8000/xw9000 series.)
Use the key located on the back of the unit to unlock the panel.
1. Make sure the airflow to and from the workstation is not blocked.
2. Make sure the fans are connected and working properly.
3. Make sure the processor heatsink is installed properly.
Transfer data from the hard drive to create more space on the hard drive.
Ensure DIMMs are matched and installed in both memory channels for
best performance.
CAUTION Internal components may be powered even when
the system is off. To prevent damage, disconnect the workstation
power cord before you remove a component.
Basic Troubleshooting 17