Chapter 4: System Safety
Chapter 4
System Safety
4-1 Electrical Safety Precautions
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Basic electrical safety precautions should be followed to protect yourself from harm and the
Be aware of the locations of the power on/off switch on the chassis as well as the room's emergency
Do not work alone when working with high voltage components.
Power should always be disconnected from the system when removing or installing main system components, such as the motherboard, memory modules and fl oppy drive. When disconnecting power, you should fi rst power down the system with the operating system fi rst and then unplug the power cords of all the power supply units in the system.
When working around exposed electrical circuits, another person who is familiar with the
Use only one hand when working with
Do not use mats designed to decrease static electrical discharge as protection from electrical shock. Instead, use rubber mats that have been specifi cally designed as electrical insulators.
The power supply power cords must include a grounding plug and must be plugged into grounded electrical outlets.