Dell Latitude 7430 - Computer Cover Handling and Internal Access; Installing Internal Accessories Safely

System and setup password..........................................................................................................................................112
Assigning a system setup password...................................................................................................................... 113
Deleting or changing an existing system setup password................................................................................ 113
Clearing BIOS (System Setup) and System passwords..........................................................................................114
Clearing chassis intrusion alert .................................................................................................................................... 114
Chapter 5: Troubleshooting........................................................................................................ 116
Handling swollen Lithium-ion batteries....................................................................................................................... 116
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................116
Running the SupportAssist Pre-Boot System Performance Check............................................................... 117
Built-in self-test (BIST)...................................................................................................................................................117
M-BIST.......................................................................................................................................................................... 117
LCD Power rail test (L-BIST).................................................................................................................................. 118
LCD Built-in Self Test (BIST).................................................................................................................................. 118
System-diagnostic lights................................................................................................................................................ 118
Recovering the operating system................................................................................................................................120
Real-Time Clock (RTC Reset)...................................................................................................................................... 120
Backup media and recovery options............................................................................................................................ 121
WiFi power cycle...............................................................................................................................................................121
Drain residual flea power (perform hard reset)........................................................................................................ 121
Chapter 6: Getting help and contacting Dell...............................................................................122
Contents
5