Chapter 4: Installing And Removing System Components; Safety Instructions - Dell EMC PowerEdge R940 Installation And Service Manual

Installing and removing system components
Topics:
•

Safety instructions

• Before working inside your system
• After working inside your system
• Recommended tools
• Optional front bezel
• System cover
• Inside the system
• Air shroud
• Cooling fans
• Fan cage
• Intrusion switch
• Drives
• Drive backplane
• Cable routing
• System memory
• Processors and heat sinks
• Processor expansion module
• PEM power board
• Expansion cards and expansion card risers
• M.2 SSD module
• Network daughter card riser
• Network daughter card
• Storage controller card
• Optional IDSDM or vFlash module
• Optional IDSDM or vFlash module
• Power supply unit
• NVDIMM-N battery
• System battery
• Optional internal USB memory key
• System board
• Trusted Platform Module
• Control panel
Safety instructions
NOTE: 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.
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
Installing and removing system components
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