Dell OptiPlex 990 (Early 2011) - Manual (Page 5)

16 Drive Cage...............................................................................................43
Removing the Drive Cage ................................................................................................43
Installing The Drive Cage ................................................................................................44
17 Wireless Module....................................................................................45
Removing the Wireless Module ......................................................................................45
Installing The Wireless Module ......................................................................................46
18 Control Panel...........................................................................................47
Removing the Control Panel ............................................................................................47
Installing The Control Panel ............................................................................................48
19 Internal Antenna.....................................................................................49
Removing the Internal Antenna .......................................................................................49
Installing The Internal Antenna .......................................................................................50
20 System Setup..........................................................................................51
System Setup ..................................................................................................................51
Boot Menu .......................................................................................................................51
Boot Menu Enhancements ..............................................................................................51
Timing Key Sequences ....................................................................................................52
Beep Codes and Text Error Messages ............................................................................53
Navigation .......................................................................................................................53
System Setup Options .....................................................................................................53
21 Troubleshooting......................................................................................65
Diagnostic LEDs ..............................................................................................................65
Beep Codes .....................................................................................................................72
Error Messages ...............................................................................................................75
22 Specifications.........................................................................................83
Technical Specifications .................................................................................................83