Installing System Components 187
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Installing System Components

Safety Instructions

WARNING: Working on systems that are still connected to a power supply can be
extremely dangerous.
CAUTION: System components and electronic circuit boards can be damaged by
discharge of static electricity.
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
To avoid injury to yourself or damage to your system, follow these guidelines:
• Always disconnect the system from the power outlet whenever you are
working inside the system.
• If possible, wear a grounded wrist strap when you are working inside the
system. Alternatively, discharge any static electricity by touching the bare
metal chassis of the system case, or the bare metal body of any other
grounded appliance.
• Hold electronic circuit boards by the edges only. Do not touch the
components on the board unless it is necessary to do so. Do not flex or
stress the circuit board.
• Leave all components inside the static-proof packaging until you are ready
to use the component for the installation.