System health and system ID indicator codes........................................................................................................28NIC indicator codes................................................................................................................................................... 29Power supply unit indicator codes........................................................................................................................... 29iDRAC Direct LED indicator codes...........................................................................................................................30Using system diagnostics................................................................................................................................................30Dell Embedded System Diagnostics......................................................................................................................... 316 Pre-operating system management applications..........................................................................................32System Setup................................................................................................................................................................... 32Viewing System Setup.............................................................................................................................................. 32System Setup details................................................................................................................................................. 32System BIOS...............................................................................................................................................................33iDRAC Settings utility................................................................................................................................................ 48Device Settings.......................................................................................................................................................... 49Dell Lifecycle Controller...................................................................................................................................................49Embedded systems management............................................................................................................................49Boot Manager...................................................................................................................................................................49Viewing Boot Manager..............................................................................................................................................49Boot Manager main menu........................................................................................................................................ 49One-shot BIOS boot menu.......................................................................................................................................50System Utilities.......................................................................................................................................................... 50PXE boot...........................................................................................................................................................................507 Jumpers and connectors ..............................................................................................................................51System board connectors................................................................................................................................................51System board jumper settings........................................................................................................................................52Disabling forgotten password......................................................................................................................................... 538 Disassembly and reassembly........................................................................................................................54Safety instructions...........................................................................................................................................................54Before working inside your system................................................................................................................................ 54After working inside your system...................................................................................................................................54Front bezel........................................................................................................................................................................55Removing the front bezel......................................................................................................................................... 55Installing the front bezel............................................................................................................................................55Hard Drives....................................................................................................................................................................... 56Removing a drive blank............................................................................................................................................. 56Installing a drive blank................................................................................................................................................57Removing a drive carrier........................................................................................................................................... 57Installing a drive carrier............................................................................................................................................. 58Removing the drive from the drive carrier............................................................................................................. 59Installing a drive into the drive carrier..................................................................................................................... 60System cover.................................................................................................................................................................... 61Removing the system cover......................................................................................................................................61Installing the system cover....................................................................................................................................... 62Cooling fans...................................................................................................................................................................... 634 Contents