Dell Precision 5490 - Page 5

Installing the display assembly..................................................................................................................................76
System board..................................................................................................................................................................... 79
Removing the system board..................................................................................................................................... 79
Installing the system board....................................................................................................................................... 84
Power button with fingerprint reader.......................................................................................................................... 90
Removing the power-button board with a fingerprint reader..........................................................................90
Installing the power-button board with a fingerprint reader.............................................................................91
USH-board FPC.................................................................................................................................................................92
Removing the USH-board FPC................................................................................................................................92
Installing the USH-board FPC.................................................................................................................................. 92
WLAN antennas.................................................................................................................................................................93
Removing the WLAN antennas................................................................................................................................ 93
Installing the WLAN antennas.................................................................................................................................. 95
Palm-rest and keyboard assembly................................................................................................................................ 96
Removing the palm-rest and keyboard assembly................................................................................................96
Installing the palm-rest and keyboard assembly.................................................................................................. 97
Chapter 6: Software....................................................................................................................99
Operating system.............................................................................................................................................................. 99
Drivers and downloads.....................................................................................................................................................99
Chapter 7: Technology and components.....................................................................................100
Intel Arc Graphics............................................................................................................................................................100
Chapter 8: BIOS Setup............................................................................................................... 101
Entering BIOS setup program....................................................................................................................................... 101
Navigation keys.................................................................................................................................................................101
F12 One Time Boot menu............................................................................................................................................... 101
View Advanced Setup options......................................................................................................................................102
View Service options...................................................................................................................................................... 102
System Setup options.................................................................................................................................................... 102
Updating the BIOS........................................................................................................................................................... 121
Updating the BIOS in Windows............................................................................................................................... 121
Updating the BIOS in Linux and Ubuntu............................................................................................................... 121
Updating the BIOS using the USB drive in Windows.........................................................................................121
Updating the BIOS from the F12 One-Time boot menu................................................................................... 122
System and setup password......................................................................................................................................... 122
Assigning a System Setup password.................................................................................................................... 123
Deleting or changing an existing system setup password............................................................................... 123
Clearing BIOS (System Setup) and System passwords.........................................................................................124
Clearing chassis intrusion alert.....................................................................................................................................124
Chapter 9: Troubleshooting....................................................................................................... 128
Handling swollen rechargeable Li-ion batteries........................................................................................................128
Locate the Service Tag or Express Service Code of your Dell computer ........................................................ 128
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 129
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 129
Built-in self-test (BIST)..................................................................................................................................................129
M-BIST......................................................................................................................................................................... 129
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