Gateway E-420, Maintaining & Troubleshooting, Page: 82 / 108

Troubleshooting 71
Troubleshooting guidelines
As you troubleshoot your system, follow these guidelines:
•
Never remove the system cover while the system is turned on.
•
Do not attempt to open the monitor; it is extremely dangerous.
Even if the monitor’s power is disconnected, stored energy within
the monitor’s components can cause a painful or harmful
experience.
•
If a peripheral such as the keyboard, mouse, drive, or printer does
not appear to work, verify that all connections are secure.
•
If an error message displays on the screen, write it down, word for
word. You may be asked for it when calling Technical Support.
•
Only qualified personnel should open the system for maintenance.
•
If you are confident that you are qualified to maintain the system
yourself, make certain you are properly grounded before opening
the system chassis. See the section “Static electricity precautions”
on page 2 for more information on preventing electrostatic damage
to the system.