HP Carrier-grade cc3300 User Information and Service Guide - HP Carrier-Grade - Page 97

Tools and Supplies Needed, Cautions

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Tools and Supplies Needed • Jumper removal tool or needle-nosed pliers • Small flat-headed screwdriver • Phillips (cross head) screwdriver (#1 bit and #2 bit) • Antistatic wrist strap and conductive foam pad (recommended) • Heatsink clip attach/removal tool Cautions These warnings and cautions apply throughout this chapter. Only a technically qualified person should configure the server board. WARNING Server power on/off: The power button DOES NOT completely turn off the server AC power; 5 Volt standby is still active whenever the server is plugged in. To remove power from server, 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 and 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. CAUTION Electrostatic discharge (ESD) and 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 remove or install a jumper; grip the narrow sides of the jumper with the pliers, never the wide sides. Gripping the wide sides can damage the contacts inside the jumper, causing intermittent problems with the function controlled by that jumper. Take care to grip with, but not squeeze, the pliers or other tool you use to remove a jumper, or you may bend or break the stake pins on the board. Chapter 9 97

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Chapter 9
97
Tools and Supplies Needed
•
Jumper removal tool or needle-nosed pliers
•
Small flat-headed screwdriver
•
Phillips (cross head) screwdriver (#1 bit and #2 bit)
•
Antistatic wrist strap and conductive foam pad (recommended)
•
Heatsink clip attach/removal tool
Cautions
These warnings and cautions apply throughout this chapter. Only a technically qualified person should
configure the server board.
WARNING
Server power on/off: The power button DOES NOT completely turn off the server
AC power; 5 Volt standby is still active whenever the server is plugged in. To
remove power from server, 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 and 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.
CAUTION
Electrostatic discharge (ESD) and 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 remove or install a jumper; grip the narrow sides of the
jumper with the pliers, never the wide sides. Gripping the wide sides can damage the contacts
inside the jumper, causing intermittent problems with the function controlled by that jumper.
Take care to grip with, but not squeeze, the pliers or other tool you use to remove a jumper, or
you may bend or break the stake pins on the board.