Troubleshooting Scenarios And Solutions; Solving Minor Problems - HP xw9400 Service And Technical Reference Manual

Troubleshooting scenarios and solutions

This section presents an extensive overview of various troubleshooting scenarios and includes possible
solutions for each.

Solving minor problems

Table 5-3 Minor problems
Problem
Workstation seems to be
locked up.
Workstation appears locked
up and will not turn off when
the power button is pressed.
Workstation date and time
display is incorrect.
Workstation appears to pause
periodically.
Cursor will not move using the
arrow keys on the keypad.
Poor performance is
experienced.
Workstation powered off
automatically and the Power
LED flashes red two times,
once every second, followed
by a two-second pause, and
two simultaneous beeps are
heard.
110 Chapter 5 System diagnostics and troubleshooting
Cause
Program in use has stopped
responding to commands.
Software control of the power
switch is not functional.
Real-time clock (RTC) battery
might need to be replaced.
Network driver is loaded and no
network connection is
established.
The Num Lock key might be on.
Processor is hot.
There is not enough memory.
Hard drive is full.
Processor thermal protection
activated:
A fan might be blocked or not
turning.
OR
The CPU heatsink is not properly
attached to the processor.
Possible Solution
1. Attempt the normal Windows shut down procedure.
2. Restart the workstation using the power button.
1. Press and hold the power button for at least four
seconds until the workstation turns off.
2. Disconnect electrical plug from outlet.
1. Reset the date and time under Control Panel.
2. Replace the RTC battery.
Establish a network connection, or use Computer Setup or
Microsoft Windows Device Manager to disable the network
controller.
Press Num Lock. The Num Lock key can be disabled (or
enabled) in Computer Setup.
1. Be sure airflow to the workstation is not blocked.
2. Be sure the fans are connected and working properly
(some fans only operate when needed).
3. Be sure the CPU heatsink is installed properly.
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.
Add more memory.
Delete data from the hard drive to create more space on the
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 system and CPU fan cables.
2. Be sure workstation air vents are not blocked and the
cooling fan is running.
3. Open the access panel, press the power button, and
determine if the processor fan spins. If not spinning, be
sure the fan's cable is plugged into the system board
header. Be sure the fan is fully/properly seated or
installed.
ENWW