The system chassis power must be turned off, and the AC power cord must remain plugged in to ensure a proper ground.
To minimize electrostatic discharge, observe the following precautions:
Hold the system board, SBus cards, or DSIMMs only by the edges.
When removing a card from an antistatic bag, lay it on an antistatic surface such as a Sun ESD mat, an antistatic bag, or a disposable antistatic mat.
Do not place cards on an unprotected surface. Use a cushioned antistatic mat or antistatic bag. Connectors and components have very thin pins that bend easily.
Do not use an oscilloscope or VOM (volt-ohmmeter) probe on components. The soldered pins are easily damaged or shorted by the probe point.
Transport cards in an antistatic bag.
Always wear an antistatic wrist strap connected to a metal surface on the chassis when working on system components and parts.