HP Z210 HP Z210 CMT Workstation Maintenance and Service Guide - Page 130

Solving minor problems, Minor problems

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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 computer shuts down. 2. Disconnect the electrical plug from the outlet. 3. Restart the computer. 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 computer 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 Num Lock key might be on. the arrow keys on the keypad. 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 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. Hard drive is full. Transfer data from the hard drive to create more space on the hard drive. 118 Chapter 6 Diagnostics and troubleshooting ENWW

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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 computer shuts down.
2.
Disconnect the electrical plug from the outlet.
3.
Restart the computer.
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 computer 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 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.
Hard drive is full.
Transfer data from the hard drive to create more space on
the hard drive.
118
Chapter 6
Diagnostics and troubleshooting
ENWW