Dell Precision 7680 Service Manual page 5

Palm rest............................................................................................................................................................................. 86
Removing the palm rest.............................................................................................................................................86
Installing the palm rest............................................................................................................................................... 87
Chapter 3: Drivers and downloads............................................................................................... 89
Chapter 4: BIOS setup.................................................................................................................90
Entering BIOS setup program........................................................................................................................................ 90
Navigation keys................................................................................................................................................................. 90
One time boot menu.........................................................................................................................................................90
BIOS setup options............................................................................................................................................................91
Clearing chassis intrusion alert............................................................................................................................... 102
Updating the BIOS.......................................................................................................................................................... 103
Updating the BIOS in Windows.............................................................................................................................. 103
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 104
Updating the BIOS using the USB drive in Windows........................................................................................ 104
Updating the BIOS from the F12 One-Time boot menu................................................................................... 104
System and setup password.........................................................................................................................................105
Assigning a system setup password..................................................................................................................... 105
Deleting or changing an existing system setup password............................................................................... 106
Clearing CMOS settings................................................................................................................................................ 106
Clearing BIOS (System Setup) and System passwords......................................................................................... 107
Chapter 5: Troubleshooting....................................................................................................... 108
Handling swollen Lithium-ion batteries...................................................................................................................... 108
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 108
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 109
Built-in self-test (BIST)................................................................................................................................................. 109
M-BIST......................................................................................................................................................................... 109
LCD Power rail test (L-BIST).................................................................................................................................. 110
LCD Built-in Self Test (BIST).................................................................................................................................. 110
System-diagnostic lights................................................................................................................................................ 110
Recovering the operating system.................................................................................................................................112
Real-Time Clock (RTC Reset)....................................................................................................................................... 112
Backup media and recovery options............................................................................................................................ 113
Wi-Fi power cycle.............................................................................................................................................................113
Drain residual flea power (perform hard reset)........................................................................................................ 113
Chapter 6: Getting help and contacting Dell............................................................................... 114
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