Dell OptiPlex 7020 (Mid 2014) - Manual (Page 4)

Removing the Heat Sink Assembly ..................................................................................................... 27
Installing the Heat Sink Assembly .......................................................................................................28
Removing the Processor .....................................................................................................................29
Installing the Processor .......................................................................................................................29
Removing the Intrusion Switch .......................................................................................................... 29
Installing the Intrusion Switch ............................................................................................................ 30
Removing the System Board .............................................................................................................. 30
Installing the System Board .................................................................................................................31
System Board Layout .......................................................................................................................... 32
3 System Setup....................................................................................................... 34
Boot Sequence ....................................................................................................................................34
Navigation Keys ...................................................................................................................................34
System Setup Options .........................................................................................................................35
Updating the BIOS ..............................................................................................................................43
Jumper Settings .................................................................................................................................. 44
System and Setup Password ...............................................................................................................44
Assigning a System Password and Setup Password .................................................................... 45
Deleting or Changing an Existing System and/or Setup Password .............................................45
Disabling a System Password ....................................................................................................... 46
4 Diagnostics.......................................................................................................... 47
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics ........................................................... 47
5 Troubleshooting Your Computer....................................................................48
Power LED Diagnostics .......................................................................................................................48
Beep Code ...........................................................................................................................................49
Error Messages ....................................................................................................................................49
6 Specifications...................................................................................................... 53
7 Contacting Dell................................................................................................... 59