Dell OptiPlex 3020–Mini Tower - Page 4

Removing the I/O Panel..................................................................................................................25
Installing the I/O Panel....................................................................................................................27
System Board Components............................................................................................................28
Removing the System Board...........................................................................................................29
Installing the System Board.............................................................................................................31
3 System Setup........................................................................................................ 33
Boot Sequence................................................................................................................................33
Navigation Keys...............................................................................................................................33
System Setup Options.....................................................................................................................34
Updating the BIOS ..........................................................................................................................42
Clearing Forgotten Password....................................................................................................43
Clearing CMOS..........................................................................................................................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............................................................................................................47
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics.........................................................47
5 Troubleshooting Your Computer.....................................................................49
Power LED Diagnostics...................................................................................................................49
Beep Code.......................................................................................................................................50
Error Messages................................................................................................................................50
6 Technical Specifications.....................................................................................55
7 Contacting Dell.................................................................................................... 59