
Installing The Redundant Power Supply Unit Divider
...................................................................................... 89
System Battery
....................................................................................................................................................... 90
Replacing The System Battery
.........................................................................................................................90
Hard-Drive Backplane
............................................................................................................................................ 91
Removing The Hard-Drive Backplane
..............................................................................................................91
Installing The Hard-Drive Backplane
...............................................................................................................94
Control Panel Assembly
..........................................................................................................................................95
Removing The Control-Panel Board
.................................................................................................................95
Installing The Control-Panel Board
..................................................................................................................96
Removing The Control Panel
............................................................................................................................96
Installing The Control Panel
............................................................................................................................. 97
System Board
..........................................................................................................................................................97
Removing The System Board
........................................................................................................................... 98
Installing The System Board
............................................................................................................................ 99
4 Troubleshooting Your System............................................................................................... 101
Safety First—For You And Your System
............................................................................................................... 101
Troubleshooting System Startup Failure
.............................................................................................................. 101
Troubleshooting External Connections
.................................................................................................................101
Troubleshooting The Video Subsystem
................................................................................................................ 101
Troubleshooting A USB Device
............................................................................................................................ 101
Troubleshooting A Serial I/O Device
.................................................................................................................... 102
Troubleshooting A NIC
..........................................................................................................................................102
Troubleshooting A Wet System
............................................................................................................................103
Troubleshooting A Damaged System
................................................................................................................... 103
Troubleshooting The System Battery
................................................................................................................... 104
Troubleshooting Power Supplies
..........................................................................................................................104
Troubleshooting Cooling Problems
.......................................................................................................................105
Troubleshooting Cooling Fans
.............................................................................................................................. 105
Troubleshooting System Memory
.........................................................................................................................105
Troubleshooting An Internal USB Key
..................................................................................................................106
Troubleshooting An SD Card
................................................................................................................................ 106
Troubleshooting An Optical Drive
.........................................................................................................................107
Troubleshooting A Hard Drive
.............................................................................................................................. 108
Troubleshooting A Storage Controller
..................................................................................................................108
Troubleshooting Expansion Cards
........................................................................................................................109
Troubleshooting Processors
.................................................................................................................................110
5 Using System Diagnostics..................................................................................................... 111
Dell Online Diagnostics
.........................................................................................................................................111
Dell Embedded System Diagnostics
..................................................................................................................... 111
When To Use The Embedded System Diagnostics
........................................................................................111
Содержание PowerEdge R520
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