DDR4 Details.............................................................................................................................................................. 55
Memory Errors........................................................................................................................................................... 56
Boot menu.........................................................................................................................................................................57
System Setup options..................................................................................................................................................... 57
Updating the BIOS in Windows .....................................................................................................................................63
Updating the Dell BIOS in Linux and Ubuntu environments....................................................................................... 64
Flashing the BIOS from the F12 One-Time boot menu............................................................................................... 65
Technical Specifications.................................................................................................................................................. 68
Processor....................................................................................................................................................................69
Memory.......................................................................................................................................................................69
Video............................................................................................................................................................................69
Audio............................................................................................................................................................................70
Network.......................................................................................................................................................................70
Expansion bus ............................................................................................................................................................70
Wireless....................................................................................................................................................................... 70
Drives............................................................................................................................................................................71
External connectors....................................................................................................................................................71
Controls and lights .................................................................................................................................................... 72
Power...........................................................................................................................................................................72
Physical dimension..................................................................................................................................................... 73
Environmental.............................................................................................................................................................73
Diagnostic and Power LED codes.................................................................................................................................. 74
Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................ 78
Contents
5
Summary of Contents for OptiPlex 5055 Tower
Page 1: ...Dell OptiPlex 5055 Tower Owner s Manual Regulatory Model D18M Regulatory Type D18M004 ...
Page 12: ...4 Lift the front bezel to remove it from the computer 12 Disassembly and reassembly ...
Page 44: ...b Slide and lift the system board away from the computer 2 44 Disassembly and reassembly ...