Dell OptiPlex Small Form Factor 7020 Owner's Manual page 5

Removing the power button..................................................................................................................................... 77
Installing the power button....................................................................................................................................... 78
Wireless antenna module................................................................................................................................................. 79
Internal antenna module.............................................................................................................................................79
External SMA antenna module................................................................................................................................. 84
Power-supply unit............................................................................................................................................................. 87
Removing the power-supply unit............................................................................................................................. 87
Installing the power-supply unit...............................................................................................................................89
Processor fan and heat-sink assembly........................................................................................................................ 90
Removing the processor fan and heat-sink assembly........................................................................................ 90
Installing the processor fan and heat-sink assembly........................................................................................... 91
Processor............................................................................................................................................................................ 92
Removing the processor............................................................................................................................................92
Installing the processor.............................................................................................................................................. 93
Optional Input/Output modules.....................................................................................................................................94
Serial module................................................................................................................................................................ 94
VGA module.................................................................................................................................................................. 97
DP module..................................................................................................................................................................... 99
HDMI module............................................................................................................................................................... 101
System board....................................................................................................................................................................103
Removing the system board................................................................................................................................... 103
Installing the system board......................................................................................................................................107
Chapter 9: Software................................................................................................................... 113
Operating system............................................................................................................................................................. 113
Drivers and downloads.................................................................................................................................................... 113
Chapter 10: BIOS Setup.............................................................................................................. 114
Entering BIOS setup program........................................................................................................................................114
Navigation keys.................................................................................................................................................................114
F12 One Time Boot menu............................................................................................................................................... 114
System setup options......................................................................................................................................................115
Updating the BIOS...........................................................................................................................................................127
Updating the BIOS in Windows.............................................................................................................................. 127
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 128
Updating the BIOS using the USB drive in Windows........................................................................................ 128
Updating the BIOS from the F12 One-Time boot menu................................................................................... 128
System and setup password......................................................................................................................................... 129
Assigning a System Setup password.................................................................................................................... 129
Deleting or changing an existing system setup password............................................................................... 130
Clearing CMOS settings.................................................................................................................................................130
Clearing BIOS (System Setup) and System passwords.........................................................................................130
Chapter 11: Troubleshooting....................................................................................................... 131
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................131
Running the SupportAssist Pre-Boot System Performance Check............................................................... 131
Power-Supply Unit Built-in Self-Test .........................................................................................................................131
System-diagnostic lights................................................................................................................................................132
Recovering the operating system................................................................................................................................132
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