Appendix A — SupportAppendix ASupportBefore you BeginCAUTION!BEFORE REMOVING THE SERVER COVER, DISCONNECT ALL POWER. UN-PLUGTHE AC POWER CORD; DISCONNECT ALL PERIPHERALS, AND ALL LAN LINES.Make sure you have a stable, clean working environment. Dust and dirt can get into computer components andcause a malfunction. Many of the screws on the server are different sizes; use containers to keep screws and smallcomponents separated.Adequate lighting and proper tools can prevent you from accidentally damaging internal components. Most of thefollowing procedures require only a few simple tools, including the following: A Philips screwdriver A flat-tipped screwdriver A grounding strap An anti-static padMost of the electrical connections can be disconnected by using your fingers. It is recommended that you do notuse needle-nosed pliers to disconnect connections as these can damage the soft metal or plastic parts of the con-nectors.Before working on internal components, make sure that the server power is off. Ground yourself before touchingany internal components, by touching a metal object. Static electricity can damage many of the server’s electroniccomponents. Humid environments tend to have less static electricity than dry environments. A grounding strap iswarranted whenever danger of static electricity exists.153