Dell Vostro 3420 - Page 5

Chapter 4: BIOS setup................................................................................................................. 81
BIOS overview.................................................................................................................................................................... 81
Entering BIOS setup program......................................................................................................................................... 81
Navigation keys.................................................................................................................................................................. 81
One time boot menu......................................................................................................................................................... 82
System setup options.......................................................................................................................................................82
Updating the BIOS............................................................................................................................................................ 85
Updating the BIOS in Windows................................................................................................................................85
Updating the BIOS in Linux and Ubuntu................................................................................................................ 86
Updating the BIOS using the USB drive in Windows..........................................................................................86
Updating the BIOS from the F12 One-Time boot menu.....................................................................................86
System and setup password...........................................................................................................................................87
Assigning a system setup password....................................................................................................................... 87
Deleting or changing an existing system setup password.................................................................................88
Clearing BIOS (System Setup) and System passwords.......................................................................................... 88
Chapter 5: Troubleshooting.........................................................................................................89
Handling swollen Lithium-ion batteries........................................................................................................................ 89
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................89
Running the SupportAssist Pre-Boot System Performance Check................................................................90
Built-in self-test (BIST)................................................................................................................................................... 90
M-BIST...........................................................................................................................................................................90
LCD Power rail test (L-BIST)....................................................................................................................................91
LCD Built-in Self Test (BIST)....................................................................................................................................91
System-diagnostic lights.................................................................................................................................................. 91
Recovering the operating system................................................................................................................................. 93
Real-Time Clock (RTC Reset)........................................................................................................................................93
Backup media and recovery options.............................................................................................................................93
WiFi power cycle............................................................................................................................................................... 93
Drain residual flea power (perform hard reset)......................................................................................................... 94
Chapter 6: Getting help and contacting Dell................................................................................ 95
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