Dell XPS 8950 - Page 4

Installing the coin-cell battery.................................................................................................................................. 37
Chassis fan.......................................................................................................................................................................... 37
Removing the chassis fan..........................................................................................................................................37
Installing the chassis fan............................................................................................................................................38
Power-supply unit............................................................................................................................................................. 39
Removing the power-supply unit.............................................................................................................................39
Installing the power-supply unit................................................................................................................................41
Voltage-regulator heat sink............................................................................................................................................ 44
Removing the voltage-regulator heat sink............................................................................................................ 44
Installing the voltage-regulator heat sink.............................................................................................................. 44
Processor fan and heat-sink assembly........................................................................................................................ 45
Removing the processor fan and heat-sink assembly (65 W)......................................................................... 45
Installing the processor fan and heat-sink assembly (65 W)........................................................................... 46
Removing the processor fan and heat-sink assembly (125 W)........................................................................ 47
Installing the processor fan and heat-sink assembly (125 W).......................................................................... 48
Processor............................................................................................................................................................................ 50
Removing the processor............................................................................................................................................50
Installing the processor..............................................................................................................................................50
System board...................................................................................................................................................................... 51
Removing the system board......................................................................................................................................51
Installing the system board....................................................................................................................................... 55
Chapter 3: Drivers and downloads............................................................................................... 59
Chapter 4: System setup............................................................................................................. 60
System setup..................................................................................................................................................................... 60
BIOS overview................................................................................................................................................................... 60
Entering BIOS setup program........................................................................................................................................ 60
Navigation keys................................................................................................................................................................. 60
Boot Sequence................................................................................................................................................................... 61
System setup options....................................................................................................................................................... 61
System and setup password...........................................................................................................................................66
Assigning a system setup password....................................................................................................................... 66
Deleting or changing an existing system setup password................................................................................. 67
Real Time Clock (RTC) reset....................................................................................................................................67
Clearing BIOS (System Setup) and System passwords.....................................................................................68
Updating the BIOS............................................................................................................................................................ 68
Updating the BIOS in Windows................................................................................................................................68
Updating the BIOS using the USB drive in Windows..........................................................................................68
Updating the BIOS from the F12 One-Time boot menu.................................................................................... 69
Chapter 5: Troubleshooting......................................................................................................... 70
Locate the Service Tag or Express Service Code of your Dell computer ..............................................70
SupportAssist diagnostics............................................................................................................................................... 70
System-diagnostic lights................................................................................................................................................. 70
Recovering the operating system.................................................................................................................................. 71
WiFi power cycle................................................................................................................................................................ 71
Flea power release............................................................................................................................................................ 72
4
Contents