Desktop Computer Hardware Maintenance Manual

Grounding requirements
Electrical grounding of the computer is required for operator safety and correct
system function. Proper grounding of the electrical outlet can be verified by a
certified electrician.
Safety notices (multi-lingual translations)
The caution and danger safety notices in this section are provided in the following
languages:
v English
v Brazilian/Portuguese
v Chinese
v French
v German
v Italian
v Korean
v Spanish
DANGER
Electrical current from power, telephone and communication cables is hazardous.
To avoid a shock hazard:
v Do not connect or disconnect any cables or perform installation, maintenance,
or reconfiguration of this product during an electrical storm.
v Connect all power cords to a properly wired and grounded electrical outlet.
v Connect to properly wired outlets any equipment that will be attached to this
product.
v When possible, use one hand only to connect or disconnect signal cables.
v Never turn on any equipment when there is evidence of fire, water, or
structural damage.
v Disconnect the attached power cords, telecommunications systems, networks,
and modems before you open the device covers, unless instructed otherwise
in the installation and configuration procedures.
v Connect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached devices.
To Connect To Disconnect
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
Chapter 10. Related service information 157