NEC POWERMATE PRO150 Manual page 83

!
WARNINGS
The procedures in this chapter assume familiarity with
the general terminology associated with personal
computers and with the safety practices and regulatory
compliance required for using and modifying electronic
equipment.
The power supply in this system contains no user-
serviceable parts. To avoid personal injury or damage to
your equipment, refer repair or replacement of the power
supply to qualified personnel only. All other areas and
components of this system are considered user-accessible.
Disconnect the system from its power source and from
any telecommunications links, networks or modems
before doing any of the procedures described in this
chapter. Failure to disconnect power, telecommunications
links, networks or modems before you open the system or
do any procedures can result in personal injury or
equipment damage. Some circuitry on the system board
may continue to operate even though the front panel
power button is off.
Do not operate the system with the cover removed.
Always replace the cover before turning on the system.
! CAUTIONS
Electrostatic discharge (ESD) can damage disk drives,
add-in boards, and other components. Do the procedures
described in this chapter only at an ESD workstation. If
such a station is not available, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching
it to a metal part of the system chassis.
Add-in boards can be extremely sensitive to ESD and
always require careful handling. After removing the board
from its protective wrapper or from the system, place the
board flat on a grounded, static-free surface,
component-side up. Use a conductive foam pad if
available, but not the board wrapper. Do not slide the
board over any surface.
5-2
Installing and Configuring System Board Options