Dell OptiPlex 3040

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Removing the coin cell battery...........................................................................................................21

Installing the coin cell battery.............................................................................................................22

Removing the heat sink assembly...................................................................................................... 22

Installing the heat sink assembly........................................................................................................ 22

Removing the processor.....................................................................................................................23

Installing the processor.......................................................................................................................23

Removing the system fan................................................................................................................... 24

Installing the system fan..................................................................................................................... 24

Removing the system board...............................................................................................................25

Installing the system board.................................................................................................................25

System board layout........................................................................................................................... 26

3 Troubleshooting your computer.....................................................................28

Diagnostic power LED codes............................................................................................................. 28

Diagnostic error messages................................................................................................................. 29

System error messages....................................................................................................................... 33

4 System Setup.......................................................................................................34

Boot Sequence....................................................................................................................................34

Navigation keys................................................................................................................................... 34

System Setup overview....................................................................................................................... 35

Accessing System Setup..................................................................................................................... 35

System Setup options......................................................................................................................... 35

Updating the BIOS ..............................................................................................................................43

System and setup password...............................................................................................................44

Assigning a system password and setup password.....................................................................44

Deleting or changing an existing system and/or setup password.............................................. 45

5 Specifications......................................................................................................46

6 Contacting Dell................................................................................................... 51

Dell OptiPlex 3040 - Page 4