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Troubleshooting scenarios and solutions
This section presents an extensive overview of various troubleshooting scenarios and possible solutions
for a Windows-based workstation.
NOTE: For Linux troubleshooting information, refer to the HP Workstations for Linux User Manual
at
http://www.hp.com/support/linux_user_manual.
Solving minor problems
Table 6-1 Minor problems
Problem Cause Possible Solution
Workstation appears frozen
and does not shut down when
the power button is pressed.
Software control of the power
switch is not functional.
1. Press and hold the power button for at least four
seconds until the workstation shuts down.
2. Disconnect the electrical plug from the outlet.
3. Restart the workstation.
Workstation seems to be
frozen.
Program in use has stopped
responding to commands.
1. If possible, use the Windows Task Manager to isolate
and terminate the offending process.
2. Attempt the normal Windows shutdown procedure.
3. Restart the workstation using the power button.
Workstation date and time
display is incorrect.
Real-time clock (RTC) battery
might need replacement.
1. Reset the date and time in the Control Panel.
2. Replace the RTC battery.
Workstation appears to pause
periodically.
Network driver is loaded and no
network connection is
established.
Establish a network connection, or use the Computer Setup
(F10) Utility or the Microsoft Windows Device Manager to
disable the network controller.
Cursor does not move using
the arrow keys on the keypad.
The Num Lock key might be on. Press Num Lock. The Num Lock key can be disabled or
enabled in the Computer Setup (F10) Utility.
Poor performance is
experienced.
Processor is hot. 1. Verify that airflow to the workstation is not blocked.
2. Verify that chassis fans are connected and working
properly. Some fans operate only when needed.
3. Verify that the processor heatsink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on
the hard drive.
Workstation powered off
automatically and the Power
LED flashes red 2 times (once
every second), followed by a 2-
second pause, and then two
simultaneous beeps sounded.
Processor thermal protection is
activated.
A fan might be blocked or not
turning.
OR
The processor heatsink is not
properly attached to
the processor.
1. Verify that the workstation air vents are not blocked.
2. Open the access panel and press the workstation
power button.
3. Verify that the system fan is running.
4. Verify that the processor heatsink fan spins. If the fan
is not spinning, verify that the heatsink fan cable is
plugged into the system board connector and that the
heatsink is properly seated.
5. Replace the processor heatsink.
System does not power on,
and the LEDs on the front of
the workstation are not
flashing.
System cannot power on. Press and hold the power button for less than four seconds.
If the hard drive LED turns green, then perform the following
steps.
1. To find a faulty device, remove all devices one at a time:
ENWW Troubleshooting scenarios and solutions 173