Dell OptiPlex 3020 Dell OptiPlex 3020-Mini Tower Owners Manual - Page 4

System Setup, Diagnostics, Troubleshooting Your Computer, Technical Specifications, Contacting Dell

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Page 4 highlights

Removing the I/O Panel...24 Installing the I/O Panel...26 System Board Components...27 Removing the System Board...28 Installing the System Board...30 3 System Setup...31 Boot Sequence...31 Navigation Keys...31 System Setup Options...32 Updating the BIOS ...40 Clearing Forgotten Password...41 Clearing CMOS...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 Technical Specifications 53 7 Contacting Dell...59

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Removing the I/O Panel
..................................................................................................................
24
Installing the I/O Panel
...................................................................................................................
26
System Board Components
............................................................................................................
27
Removing the System Board
...........................................................................................................
28
Installing the System Board
............................................................................................................
30
3
System Setup
.........................................................................................................
31
Boot Sequence
................................................................................................................................
31
Navigation Keys
...............................................................................................................................
31
System Setup Options
.....................................................................................................................
32
Updating the BIOS
.........................................................................................................................
40
Clearing Forgotten Password
....................................................................................................
41
Clearing CMOS
..........................................................................................................................
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
Technical Specifications
.....................................................................................
53
7
Contacting Dell
....................................................................................................
59