Dell OptiPlex 390 (Mid 2011) - Manual (Page 5)

16 Power Supply..........................................................................................47
Removing The Power Supply ..........................................................................................47
Installing The Power Supply ...........................................................................................49
17 System Board..........................................................................................51
Removing the System Board ...........................................................................................51
Installing the System Board ............................................................................................53
18 Power Supply Unit (PSU) Thermal Sensor.........................................55
Removing The PSU Thermal Sensor ...............................................................................55
Installing The PSU Thermal Sensor ................................................................................56
19 System Setup..........................................................................................57
System Setup ..................................................................................................................57
Boot Menu .......................................................................................................................57
Boot Menu Enhancements ..............................................................................................57
Timing Key Sequences ....................................................................................................58
Beep Codes and Text Error Messages ............................................................................59
Navigation .......................................................................................................................59
System Setup Options .....................................................................................................59
20 Troubleshooting......................................................................................69
Diagnostic LEDs ..............................................................................................................69
Beep Codes .....................................................................................................................76
Error Messages ...............................................................................................................79
21 Specifications.........................................................................................89
Specification ...................................................................................................................89
22 Contacting Dell.......................................................................................97
Contacting Dell ................................................................................................................97