Dell XPS 8930 Service Manual page 7

Prerequisites..................................................................................................................................................................... 93
Procedure..........................................................................................................................................................................93
49 Replacing the system board.......................................................................................................................95
Procedure......................................................................................................................................................................... 95
Post-requisites................................................................................................................................................................. 95
50 Downloading drivers.................................................................................................................................. 96
Downloading the audio driver.........................................................................................................................................96
Downloading the graphics driver................................................................................................................................... 96
Downloading the USB 3.0 driver....................................................................................................................................96
Downloading the Wi-Fi driver.........................................................................................................................................96
Downloading the media-card reader driver...................................................................................................................97
Downloading the chipset driver......................................................................................................................................97
Downloading the network driver.................................................................................................................................... 97
51 System setup............................................................................................................................................. 98
Boot Sequence.................................................................................................................................................................98
Navigation keys................................................................................................................................................................ 98
BIOS overview..................................................................................................................................................................99
Entering BIOS setup program........................................................................................................................................ 99
System Setup Options.................................................................................................................................................... 99
System and setup password......................................................................................................................................... 102
Assigning a system setup password.......................................................................................................................103
Deleting or changing an existing system setup password...................................................................................103
Clearing CMOS settings.......................................................................................................................................... 103
Clearing forgotten passwords.................................................................................................................................105
52 Troubleshooting........................................................................................................................................ 107
Enhanced Pre-Boot System Assessment (ePSA) diagnostics..................................................................................107
Running the ePSA Diagnostics............................................................................................................................... 107
Diagnostics...................................................................................................................................................................... 107
Flashing BIOS (USB key)...............................................................................................................................................108
Flashing the BIOS...........................................................................................................................................................108
Backup media and recovery options............................................................................................................................ 108
Power-supply unit Built-in Self Test (BIST)................................................................................................................ 109
Steps to confirm that power-supply unit is defective..........................................................................................109
Wi-Fi power cycle...........................................................................................................................................................109
53 Getting help and contacting Dell................................................................................................................111
Self-help resources.......................................................................................................................................................... 111
Contacting Dell................................................................................................................................................................. 111
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