Removing The Cooling-Fan Assembly..............................................................................................................55Installing The Cooling-Fan Assembly...............................................................................................................56Internal USB Memory Key (Optional).....................................................................................................................56Replacing The Internal USB Key......................................................................................................................56Expansion Cards And Expansion-Card Risers........................................................................................................57Expansion Cards Installation Guidelines..........................................................................................................57Removing An Expansion Card From An Expansion-Card Riser 1 Or 2..............................................................58Installing An Expansion Card Into The Expansion-Card Riser 1 Or 2...............................................................61Removing An Expansion Card From The Expansion-Card Riser 3 ...................................................................61Installing An Expansion Card Into The Expansion-Card Riser 3.......................................................................63Removing Expansion-Card Risers....................................................................................................................64Installing Expansion-Card Risers.....................................................................................................................68SD vFlash Card........................................................................................................................................................68Replacing An SD vFlash Card...........................................................................................................................68Internal Dual SD Module........................................................................................................................................69Removing The Internal Dual SD Module..........................................................................................................69Installing the Internal Dual SD Module............................................................................................................70Internal SD Card.....................................................................................................................................................71Removing An Internal SD Card.........................................................................................................................71Installing An Internal SD Card..........................................................................................................................71Integrated Storage Controller Card........................................................................................................................71Removing The Integrated Storage Controller Card..........................................................................................72Installing The Integrated Storage Controller Card...........................................................................................74Network Daughter Card..........................................................................................................................................74Removing The Network Daughter Card...........................................................................................................75Installing The Network Daughter Card.............................................................................................................76Processors..............................................................................................................................................................76Removing The Processor.................................................................................................................................77Installing The Processor..................................................................................................................................80Power Supplies.......................................................................................................................................................81Hot Spare Feature............................................................................................................................................81Removing An AC Power Supply.......................................................................................................................82Installing An AC Power Supply........................................................................................................................83Wiring Instructions For A DC Power Supply....................................................................................................83Removing A DC Power Supply.........................................................................................................................86Installing A DC Power Supply..........................................................................................................................87Removing The Power Supply Blank.................................................................................................................87Installing The Power Supply Blank..................................................................................................................88System Battery.......................................................................................................................................................88Replacing The System Battery.........................................................................................................................88Hard-Drive Backplane............................................................................................................................................89Removing The Hard-Drive Backplane..............................................................................................................89