Silicon Graphics IS2224, Setup Manual

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ESD Precautions
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• Place the chassis top cover and any system components that have been removed away from
the system or on a table so that they won't accidentally be stepped on.
• While working on the system, do not wear loose clothing such as neckties and unbuttoned
shirt sleeves, which can come into contact with electrical circuits or be pulled into a cooling
fan.
• Remove any jewelry or metal objects from your body, which are excellent metal conductors
that can create short circuits and harm you if they come into contact with printed circuit
boards or areas where power is present.
• After accessing the inside of the system, close the system back up and secure it in the rack
unit after ensuring that all connections have been made.
ESD Precautions
Caution: Electrostatic discharge (ESD) is generated by two objects with different electrical
charges coming into contact with each other. An electrical discharge is created to neutralize this
difference, which can damage electronic components and printed circuit boards.
The following measures are generally sufficient to neutralize this difference before contact is
made to protect your equipment from ESD:
• Use a grounded wrist strap designed to prevent static discharge.
• Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for
use.
• Touch a grounded metal object before removing the board from the antistatic bag.
• Do not let components or PCBs come into contact with your clothing, which may retain a
charge even if you are wearing a wrist strap.
• Handle a board by its edges only; do not touch its components, peripheral chips, memory
modules or contacts.
• When handling chips or modules, avoid touching their pins.
• Put the head node serverboard and peripherals back into their antistatic bags when not in use.
• For grounding purposes, make sure your computer chassis provides excellent conductivity
between the power supply, the case, the mounting fasteners and the serverboard.
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