Acer Altos R700 Series - Manual (Page 51)

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Cautions
These warnings and cautions apply throughout this chapter. Only a
technically qualified person should configure the server board.
Cautions:
System power on/off: The power button DOES NOT completely
turn off the system AC power, 5V standby is still active whenever
the system is plugged in. To remove power from system, you must
unplug the AC power cord from the wall outlet. Make sure the AC
power cord is unplugged before you open the chassis, add, or
remove any components.
Hazardous conditions, devices & cables: Hazardous electrical
conditions may be present on power, telephone, and
communication cables. Turn off the server and disconnect the
power cord, telecommunications systems, networks, and modems
attached to the server before opening it. Otherwise, personal
injury or equipment damage can result.
Electrostatic discharge (ESD) & ESD protection: ESD can
damage disk drives, boards, and other parts. We recommend that
you perform all procedures in this chapter only at an ESD
workstation. If one is not available, provide some ESD protection
by wearing an antistatic wrist strap attached to chassis ground
(any unpainted metal surface) on your server when handling
parts.
ESD and handling boards: Always handle boards carefully. They
can be extremely sensitive to ESD. Hold boards only by their
edges. After removing a board from its protective wrapper or
from the server, place the board component side up on a
grounded, static free surface. Use a conductive foam pad if
available but not the board wrapper. Do not slide board over any
surface.
Installing or removing jumpers: A jumper is a small plastic
encased conductor that slips over two jumper pins. Some jumpers
have a small tab on top that you can grip with your fingertips or
with a pair of fine needle nosed pliers. If your jumpers do not
have such a tab, take care when using needle nosed pliers to
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