Dell P114F Service Manual page 5

Chapter 4: BIOS setup.................................................................................................................92
Entering BIOS setup program........................................................................................................................................ 92
Navigation keys..................................................................................................................................................................92
One time boot menu......................................................................................................................................................... 92
BIOS setup options........................................................................................................................................................... 93
Updating the BIOS.......................................................................................................................................................... 104
Updating the BIOS in Windows.............................................................................................................................. 104
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...................................................................................105
System and setup password......................................................................................................................................... 106
Assigning a system setup password......................................................................................................................106
Deleting or changing an existing system setup password............................................................................... 106
Clearing CMOS settings.................................................................................................................................................107
Clearing BIOS (System Setup) and System passwords......................................................................................... 107
Chapter 5: Troubleshooting....................................................................................................... 108
Handling swollen rechargeable Li-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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