Installing And Removing System Components; Safety Instructions - Dell EMC PowerEdge R940 Installation And Service Manual

Installing and removing system components

This section provides information about installing and removing the PowerEdge R940 components.
Topics:
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Safety instructions

• Before working inside your system
• After working inside your system
• Recommended tools
• Front bezel (optional)
• System cover
• Inside the system
• Air shroud
• Cooling fans
• Fan cage
• Intrusion switch
• Hard drives
• Hard drive backplane
• System memory
• Processors and heat sinks
• Processor expansion module
• PEM power board
• Expansion cards and expansion card risers
• Network daughter card riser
• Network daughter card
• Storage controller card
• IDSDM/vFlash card (optional)
• Power supply unit
• System battery
• Internal USB memory key (optional)
• System board
• Trusted Platform Module
• Control panel
Safety instructions
WARNING: Whenever you need to lift the system, get others to assist you. To avoid injury, do not attempt to lift the system by
yourself.
WARNING: Opening or removing the system cover while the system is powered on may expose you to a risk of electric shock.
CAUTION: Do not operate the system without the cover for a duration exceeding five minutes. Operating the system without the
system cover can result in component damage.
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