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Dangerous situations, equipment and cables: power, telephones, and signal cables may have the danger
of electric shock. Before opening the device, shut down the server, disconnected the power cord, the
communication system, network and modem connected to the server. Otherwise, it may result in personal
injury or equipment damage.
Electrostatic Discharge (ESD) and ESD protection: Electrostatic Discharge (ESD) can damage disk
drivers, system board and other components. We recommend that you complete all the steps in this Section
only in the ESD protective workstations. If ESD workstation is unavailable, please wear anti-static wrist strap
while holding parts and connect the wrist strap to the ground wire (that is, any unpainted metal surface)
of the server chassis to provide ESD protection.
ESD and holding system boards: be careful when holding the system board. They are extremely sensitive
to ESD. Only touch the edge when holding the system board. Lay the system board with components side
facing upwards after taking the system board out of the protection bag or the sever. Use the conductive
foam pad (if any) rather than the system board package. Do not slide the system board on any surface.
Installing or removing jumper: jumper is a small plastic conductor between two jumper pins. Some jumpers
have a small wing on the top for you to use ngertips or ne needle forceps to clip it. If the jumper has no
such wing, be careful when installing or removing it with needle forceps, and clip the jumper's narrow face
instead of the wide one. Clipping the wide face will damage the contacts inside the jumper, which will lead to
intermittent faults to some functions controlled by the jumper. Clip the jumper carefully with pliers or other
tools and do not squeeze when removing it. Otherwise, pins on the system board may be bent or broken.
2 ThinkServer Management Module User Guide