Dell EMC PowerEdge R940 Installation And Service Manual page 4

Installing the cooling fan.............................................................................................................................................41
Fan cage.............................................................................................................................................................................. 42
Removing the fan cage.............................................................................................................................................. 42
Installing the fan cage................................................................................................................................................ 43
Removing the fan tray................................................................................................................................................44
Installing the fan tray..................................................................................................................................................45
Intrusion switch................................................................................................................................................................. 46
Removing an intrusion switch.................................................................................................................................. 46
Installing an intrusion switch.....................................................................................................................................47
Drives................................................................................................................................................................................... 48
Removing a drive blank.............................................................................................................................................. 48
Installing a drive blank................................................................................................................................................ 49
Removing a drive carrier............................................................................................................................................49
Installing a drive carrier..............................................................................................................................................50
Removing the drive from the drive carrier.............................................................................................................51
Installing a drive into the drive carrier....................................................................................................................52
Drive backplane................................................................................................................................................................. 53
Drive backplane connectors......................................................................................................................................53
Removing drive backplane........................................................................................................................................ 55
Installing drive backplane ..........................................................................................................................................57
Cable routing...................................................................................................................................................................... 60
System memory................................................................................................................................................................. 63
System memory guidelines........................................................................................................................................63
General memory module installation guidelines....................................................................................................65
NVDIMM-N memory module installation guidelines ...........................................................................................66
PMem installation guidelines ................................................................................................................................... 69
Mode-specific guidelines........................................................................................................................................... 72
Removing a memory module..................................................................................................................................... 73
Installing a memory module....................................................................................................................................... 74
Processors and heat sinks...............................................................................................................................................75
Removing a processor and heat sink module........................................................................................................75
Removing the processor from the processor and heat sink module...............................................................76
Installing the processor into a processor and heat sink module.......................................................................77
Installing a processor and heat sink module......................................................................................................... 80
Processor expansion module...........................................................................................................................................81
Removing the PEM...................................................................................................................................................... 81
Installing the PEM....................................................................................................................................................... 82
UPI cable routing......................................................................................................................................................... 84
PEM power board............................................................................................................................................................. 85
Removing the PEM power board............................................................................................................................ 85
Installing the PEM power board...............................................................................................................................86
Expansion cards and expansion card risers.................................................................................................................87
Expansion card installation guidelines.....................................................................................................................87
Removing expansion card riser blank .................................................................................................................... 90
Installing expansion card riser blank....................................................................................................................... 90
Removing the expansion card riser ........................................................................................................................ 91
Installing the expansion card riser........................................................................................................................... 93
Removing the expansion card from expansion card riser..................................................................................94
Installing expansion card into expansion card riser............................................................................................. 95
M.2 SSD module................................................................................................................................................................ 96
4 Contents