Dell Vostro 3681 Service Manual page 4

Installing the 2230 solid-state drive........................................................................................................................35
M.2 2280 Solid state drive..............................................................................................................................................36
Removing the 2280 solid-state drive..................................................................................................................... 36
Installing the 2280 solid-state drive........................................................................................................................37
WLAN Card......................................................................................................................................................................... 38
Removing the WLAN card.........................................................................................................................................38
Installing the WLAN card........................................................................................................................................... 39
SD card................................................................................................................................................................................. 41
Removing the media card reader............................................................................................................................. 41
Installing the media card reader................................................................................................................................41
Power supply unit..............................................................................................................................................................42
Removing the power-supply unit.............................................................................................................................42
Installing the power-supply unit............................................................................................................................... 44
Heatsink assembly............................................................................................................................................................. 47
Removing the heatsink assembly.............................................................................................................................47
Installing the heatsink assembly...............................................................................................................................48
Processor............................................................................................................................................................................ 49
Removing the processor............................................................................................................................................49
Installing the processor...............................................................................................................................................51
System board..................................................................................................................................................................... 52
Removing the system board..................................................................................................................................... 52
Installing the system board....................................................................................................................................... 55
Chapter 4: System setup............................................................................................................. 59
BIOS overview................................................................................................................................................................... 59
Entering BIOS setup program........................................................................................................................................ 59
Boot menu...........................................................................................................................................................................59
Navigation keys................................................................................................................................................................. 59
Boot Sequence.................................................................................................................................................................. 60
System setup options.......................................................................................................................................................60
Updating the BIOS............................................................................................................................................................ 65
Updating the BIOS in Windows................................................................................................................................65
Updating the BIOS in Linux and Ubuntu................................................................................................................ 65
Updating the BIOS using the USB drive in Windows......................................................................................... 65
Updating the BIOS from the F12 One-Time boot menu.................................................................................... 66
System and setup password...........................................................................................................................................66
Assigning a system setup password....................................................................................................................... 67
Deleting or changing an existing system setup password................................................................................. 67
Clearing CMOS settings/RTC reset............................................................................................................................. 68
Clearing BIOS (System Setup) and System passwords.......................................................................................... 68
Chapter 5: Troubleshooting.........................................................................................................69
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................69
Running the SupportAssist Pre-Boot System Performance Check................................................................69
Real-Time Clock (RTC Reset)........................................................................................................................................69
System diagnostic lights.................................................................................................................................................. 70
Diagnostic error messages............................................................................................................................................... 71
System error messages....................................................................................................................................................73
Recovering the operating system..................................................................................................................................74
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