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Nec express5800 tm800 nl Manual

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User Guide
199
www.nec-computers.com
Solving Problems
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 and system user information.
Warning
The DC push-button on/off switch on the front panel does not
turn off completely the system AC power. +5vdc is present on
the system board whenever the AC power cord is connected
between the system and an AC outlet. Before doing the proce-
dures in this manual, make sure that your system is powered off
and unplug the AC power cords from the back of the chassis.
Not disconnecting power before opening your system can result
in personal injury and equipment damage
Caution
Running your system with the cover removed can damage your
system components.
For proper cooling and airflow, always replace the covers
before powering on your system.
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.
… 199 …


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