Static Precautions - NEC Express5800 320La User Manual

Problem Solving
This chapter helps you identify and solve problems that may occur during system
installation or while using your system. The first section of this chapter tells you how to
reset your system in the event of problems. The next few sections provide
troubleshooting checklists and procedural steps that help you isolate specific system
problems. The last section includes BIOS, system, and disk status user information.
Fault-tolerant systems require both hardware and software-based methods of
troubleshooting system hardware. Hardware-based troubleshooting relies on status LED
indicators and error messages either displayed on a monitor or LCD panel. Software-
based troubleshooting is achieved by way of the server manager. Information about
hardware failures is viewed from various sources:
Status LEDs on each hardware component
!
Alarm messages on the system monitor and LCD panel
!
Windows 2000 Event Log
!
System inventory from the Server Manager
!
The failed system component related to an error condition is identified as a Customer
Replaceable Unit (CRU) of which most are hot-pluggable and redundant.
See Chapter 1, "Customer Replaceable Units (CRUs).
The DC push-button on/off switch on the front panel does not turn off
the system AC power. Also, +5vdc is present on some of the system
boards whenever the AC power cord is connected between the
system and an AC outlet. Before doing the procedures in this
manual, make sure that your system is powered off and unplug the
AC power cords from the back of the chassis. Failure to disconnect
power before opening your system can result in personal injury and
equipment damage

Static Precautions

An electrostatic discharge (ESD) can damage disk drives, option boards, and other
components. You can provide some ESD protection by wearing an antistatic wrist strap
attached to chassis ground when handling system components.
Electronic devices can be easily damaged by static electricity. To prevent damage, keep
them in their protective packaging when they are not installed in your system.
5-2 Problem Solving
! WARNING