Troubleshooting cooling fans.......................................................................................................... 134
Troubleshooting system memory.................................................................................................... 135
Troubleshooting an internal USB key...............................................................................................136
Troubleshooting an SD card.............................................................................................................136
Troubleshooting an optical drive......................................................................................................137
Troubleshooting a tape backup unit................................................................................................ 138
Troubleshooting a hard drive........................................................................................................... 138
Troubleshooting a storage controller.............................................................................................. 139
Troubleshooting expansion cards....................................................................................................140
Troubleshooting processors............................................................................................................ 140
System messages...............................................................................................................................141
Warning messages.......................................................................................................................141
Diagnostic messages...................................................................................................................141
Alert messages.............................................................................................................................141
6 Using system diagnostics................................................................................142
Dell Embedded System Diagnostics.................................................................................................142
When to use the Embedded System Diagnostics......................................................................142
Running the Embedded System Diagnostics from Boot Manager............................................142
Running the Embedded System Diagnostics from the Dell Lifecycle Controller.....................142
System diagnostic controls.........................................................................................................143
7 Jumpers and connectors................................................................................ 144
System board jumper settings..........................................................................................................144
System board connectors.................................................................................................................145
Disabling a forgotten password........................................................................................................147
8 Technical specifications..................................................................................148
9 Getting help.......................................................................................................154
Contacting Dell................................................................................................................................. 154
Locating your system Service Tag....................................................................................................154
Documentation feedback.................................................................................................................154
Quick Resource Locator (QRL).........................................................................................................154
