Troubleshooting Scenarios And Solutions; Solving Minor Problems - HP Z220 SFF Maintenance And Service Manual

Troubleshooting scenarios and solutions

This section presents troubleshooting scenarios and possible solutions for a Windows-based system.

Solving minor problems

Table 4-1 Minor problems
Problem
Workstation appears frozen
and does not shut down when
the power button is pressed.
Workstation seems to be
frozen.
Workstation date and time
display is incorrect.
Workstation appears to pause
periodically.
Cursor does not move using
the arrow keys on the keypad.
Poor performance is
experienced.
Cause
Software control of the power
switch is not functional.
Program in use has stopped
responding to commands.
Real-time clock (RTC) battery
might need replacement.
Network driver is loaded and no
network connection is
established.
The Num Lock key might be on.
Processor is hot.
Hard drive is full.
Possible Solution
1. Press and hold the power button for at least four
seconds until the computer shuts down.
2.
Disconnect the electrical plug from the outlet.
3. Restart the computer.
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 computer using the power button.
1. Reset the date and time in the Control Panel.
2. Replace the RTC battery.
Establish a network connection, or use the Computer Setup
(F10) Utility or the Microsoft Windows Device Manager to
disable the network controller.
Press Num Lock. The Num Lock key can be disabled or
enabled in the Computer Setup (F10) Utility.
1. Verify that airflow to the computer 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.
Transfer data from the hard drive to create more space on
the hard drive.
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