Dell Inspiron 15-5578 Service Manual page 7

Chapter 48: Replacing the sensor board...................................................................................... 80
Procedure............................................................................................................................................................................80
Post-requisites...................................................................................................................................................................80
Chapter 49: Downloading drivers................................................................................................. 81
Downloading the audio driver..........................................................................................................................................81
Downloading the graphics driver....................................................................................................................................81
Intel USB 3.0 xHCI............................................................................................................................................................. 81
Downloading the Wi-Fi driver..........................................................................................................................................81
Downloading the media-card reader driver.................................................................................................................82
Downloading the chipset driver..................................................................................................................................... 82
Downloading the network driver................................................................................................................................... 82
Chapter 50: System setup........................................................................................................... 83
Boot Sequence...................................................................................................................................................................83
Navigation keys..................................................................................................................................................................83
System setup......................................................................................................................................................................83
Entering BIOS setup program........................................................................................................................................ 84
System setup options.......................................................................................................................................................84
System and setup password...........................................................................................................................................88
Assigning a system setup password....................................................................................................................... 88
Deleting or changing an existing system setup password.................................................................................89
Clearing CMOS settings............................................................................................................................................ 89
Clearing BIOS (System Setup) and System passwords.....................................................................................89
Chapter 51: Troubleshooting....................................................................................................... 90
Flashing the BIOS..............................................................................................................................................................90
Flashing BIOS (USB key)................................................................................................................................................ 90
Dell SupportAssist Pre-boot System Performance Check diagnostics............................................................... 90
Running the ePSA Diagnostics................................................................................................................................. 91
System diagnostic lights...................................................................................................................................................91
Flea power release............................................................................................................................................................ 92
WiFi power cycle............................................................................................................................................................... 92
Chapter 52: Getting help and contacting Dell.............................................................................. 93
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