Dell OptiPlex 3090 Small Form Factor Service Manual page 4

Removing the heat-sink and fan assembly............................................................................................................37
Installing the heat-sink and fan assembly.............................................................................................................. 37
Coin-cell battery................................................................................................................................................................ 38
Removing the coin-cell battery................................................................................................................................38
Installing the coin-cell battery.................................................................................................................................. 39
Expansion card...................................................................................................................................................................40
Removing the graphics card..................................................................................................................................... 40
Installing the graphics card........................................................................................................................................ 41
Memory modules............................................................................................................................................................... 43
Removing the memory modules...............................................................................................................................43
Installing the memory modules................................................................................................................................. 43
Processor............................................................................................................................................................................ 44
Removing the processor............................................................................................................................................44
Installing the processor.............................................................................................................................................. 45
Power-supply unit............................................................................................................................................................. 47
Removing the power-supply unit............................................................................................................................. 47
Installing the power-supply unit...............................................................................................................................49
Intrusion switch................................................................................................................................................................. 52
Removing the intrusion switch.................................................................................................................................52
Installing the intrusion switch...................................................................................................................................53
Power button..................................................................................................................................................................... 54
Removing the power button.....................................................................................................................................54
Installing the power button.......................................................................................................................................55
Optional I/O modules (HDMI/VGA/DP/Serial)......................................................................................................... 56
Removing optional I/O modules (HDMI/VGA/DP/Serial)................................................................................ 56
Installing optional I/O modules (HDMI/VGA/DP/Serial)...................................................................................57
System board..................................................................................................................................................................... 58
Removing the system board..................................................................................................................................... 58
Installing the system board........................................................................................................................................ 61
Chapter 3: Drivers and downloads............................................................................................... 66
Chapter 4: BIOS setup.................................................................................................................67
BIOS overview....................................................................................................................................................................67
Entering BIOS setup program........................................................................................................................................ 67
Navigation keys..................................................................................................................................................................67
One time boot menu......................................................................................................................................................... 68
System setup options.......................................................................................................................................................68
General options............................................................................................................................................................ 68
System information.....................................................................................................................................................69
Video screen options.................................................................................................................................................. 70
Security.......................................................................................................................................................................... 70
Secure boot options.....................................................................................................................................................71
Intel Software Guard Extensions options.............................................................................................................. 72
Performance................................................................................................................................................................. 72
Power management.................................................................................................................................................... 73
Post behavior................................................................................................................................................................74
Manageability................................................................................................................................................................74
Virtualization support..................................................................................................................................................74
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