Dell OptiPlex 9020 (Mid 2013) - Manual (Page 4)

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