Dell OptiPlex 9020

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Removing the Heat Sink Assembly......................................................................................................................... 25

Installing the Heat Sink Assembly.......................................................................................................................... 26

Removing the Processor.........................................................................................................................................26

Installing the Processor..........................................................................................................................................27

Removing the Intrusion Switch...............................................................................................................................27

Installing the Intrusion Switch................................................................................................................................27

System Board Components.................................................................................................................................... 28

Removing the System Board...................................................................................................................................28

Installing the System Board....................................................................................................................................29

3 System Setup............................................................................................................................. 31

Boot Sequence....................................................................................................................................................... 31

Navigation Keys......................................................................................................................................................31

System Setup Options.............................................................................................................................................32

Updating the BIOS ................................................................................................................................................. 41

Jumper Settings......................................................................................................................................................41

System and Setup Password..................................................................................................................................41

Assigning a System Password and Setup Password...................................................................................... 42

Deleting or Changing an Existing System and/or Setup Password..................................................................42

Disabling a System Password..........................................................................................................................43

4 Diagnostics.................................................................................................................................45

Enhanced Pre-Boot System Assessment (ePSA) Diagnostics...............................................................................45

5 Troubleshooting Your Computer.............................................................................................47

Power LED Diagnostics.......................................................................................................................................... 47

Beep Code.............................................................................................................................................................. 48

Error Messages...................................................................................................................................................... 48

6 Specifications............................................................................................................................ 53

7 Contacting Dell.......................................................................................................................... 61