Dell Inspiron 3480 Service Manual page 7

Procedure......................................................................................................................................................................... 112
49 Replacing the display hinges..................................................................................................................... 114
Procedure ........................................................................................................................................................................114
Post-requisites.................................................................................................................................................................115
50 Removing the display cable.......................................................................................................................116
Prerequisites.................................................................................................................................................................... 116
Procedure.........................................................................................................................................................................116
51 Replacing the display cable........................................................................................................................118
Procedure.........................................................................................................................................................................118
Post-requisites.................................................................................................................................................................119
52 Removing the display back-cover and antenna assembly..........................................................................120
Prerequisites....................................................................................................................................................................120
Procedure........................................................................................................................................................................ 120
53 Replacing the display back-cover and antenna assembly.......................................................................... 122
Procedure........................................................................................................................................................................ 122
Post-requisites................................................................................................................................................................ 122
54 Device drivers...........................................................................................................................................124
Intel Chipset Software Installation Utility.....................................................................................................................124
Video drivers....................................................................................................................................................................124
Intel Serial IO driver........................................................................................................................................................ 124
Intel Trusted Execution Engine Interface..................................................................................................................... 124
Intel Virtual Button driver.............................................................................................................................................. 125
Wireless and Bluetooth drivers..................................................................................................................................... 125
55 System setup........................................................................................................................................... 126
System setup.................................................................................................................................................................. 126
Entering BIOS setup program....................................................................................................................................... 126
Navigation keys...............................................................................................................................................................126
Boot Sequence................................................................................................................................................................127
System setup options.....................................................................................................................................................127
Clearing CMOS settings................................................................................................................................................ 132
Clearing BIOS (System Setup) and System passwords............................................................................................ 132
56 Troubleshooting........................................................................................................................................134
Flashing the BIOS........................................................................................................................................................... 134
Flashing BIOS (USB key)...............................................................................................................................................134
Enhanced Pre-Boot System Assessment (ePSA) diagnostics................................................................................. 135
Running the ePSA diagnostics................................................................................................................................135
System diagnostic lights................................................................................................................................................ 135
Enabling Intel Optane memory...................................................................................................................................... 137
Disabling Intel Optane memory..................................................................................................................................... 137
WiFi power cycle.............................................................................................................................................................137
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