Dell OptiPlex 7020 - Page 4

Removing the Heat Sink Assembly.....................................................................................................26
Installing the Heat Sink Assembly....................................................................................................... 27
Removing the Processor.....................................................................................................................28
Installing the Processor.......................................................................................................................28
Removing the Intrusion Switch.......................................................................................................... 28
Installing the Intrusion Switch............................................................................................................ 29
Removing the System Board.............................................................................................................. 29
Installing the System Board................................................................................................................ 30
System Board Layout...........................................................................................................................31
3 System Setup....................................................................................................... 33
Boot Sequence....................................................................................................................................33
Navigation Keys................................................................................................................................... 33
System Setup Options.........................................................................................................................34
Updating the BIOS ..............................................................................................................................42
Jumper Settings.................................................................................................................................. 43
System and Setup Password...............................................................................................................43
Assigning a System Password and Setup Password.................................................................... 44
Deleting or Changing an Existing System and/or Setup Password............................................ 44
Disabling a System Password....................................................................................................... 45
4 Diagnostics..........................................................................................................46
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics........................................................... 46
5 Troubleshooting Your Computer....................................................................47
Power LED Diagnostics.......................................................................................................................47
Beep Code...........................................................................................................................................48
Error Messages....................................................................................................................................48
6 Specifications...................................................................................................... 52
7 Contacting Dell................................................................................................... 58