2.1 Safety Information
This section describes important safety information you need to know prior to removing or installing parts in the server.
For your protection, observe the following safety precautions when setting up your equipment:
Follow all Sun standard cautions, warnings, and instructions marked on the equipment and described in Important Safety Information for Sun Hardware Systems, 816-7190.
Ensure that the voltage and frequency of your power source match the voltage and frequency inscribed on the equipment s electrical rating label.
Follow the electrostatic discharge safety practices as described in this section.
2.1.1 Safety Symbols
The following symbols might appear in this book, note their meanings:
 | Caution - There is a risk of personal injury and equipment damage. To avoid personal injury and equipment damage, follow the instructions. |
 | Caution - Hot surface. Avoid contact. Surfaces are hot and might cause personal injury if touched. |
 | Caution - Hazardous voltages are present. To reduce the risk of electric shock and danger to personal health, follow the instructions. |
2.1.2 Electrostatic Discharge Safety
Electrostatic discharge (ESD) sensitive devices, such as the motherboard, PCI cards, hard drives, and memory cards require special handling.
| Caution - The boards and hard drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work environment can destroy components. Do not touch the components along their connector edges. |
2.1.2.1 Use an Antistatic Wrist Strap
Wear an antistatic wrist strap and use an antistatic mat when handling components such as drive assemblies, boards, or cards. When servicing or removing server components, attach an antistatic strap to your wrist and then to a metal area on the chassis. Then disconnect the power cords from the server. Following this practice equalizes the electrical potentials between you and the server.
2.1.2.2 Use an Antistatic Mat
Place ESD-sensitive components such as the motherboard, memory, and other PCB cards on an antistatic mat.