Dell PowerEdge R940 EMC Installation and Service Manual - Page 65

Installing and removing system components, Safety instructions

Page 65 highlights

6 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 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 are shipped with your product. Installing and removing system components 65

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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 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 are shipped with your product.
6
Installing and removing system components
65