Dell Vostro 3491

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2. Insert the tabs on the display-hinge cover to the slots on the display back-cover and antenna assembly.

3. Snap the display-hinge cover into place.

Removing and installing components

Main Page

Table of Contents3
Working on Your Computer6
Safety Instructions6
Before Working Inside Your Computer6
Electrostatic Discharge-ESD Protection7
ESD Field Service Kit7
Transporting Sensitive Components8
After Working Inside Your Computer8
Removing and Installing Components9
Recommended Tools9
Screw List9
Secure Digital Card10
Removing the Secure Digital Card10
Installing the Secure Digital Card11
Base Cover11
Removing the Base Cover11
Installing the Base Cover13
Battery14
Lithium-Ion Battery Precautions14
Removing the Battery15
Installing the Battery15
Memory Modules16
Removing the Memory Module16
Installing the Memory Module17
WLAN Card18
Removing the WLAN Card18
Installing the WLAN Card19
Solid-State Drive/Intel Optane (Optional)20
Removing the M.2 2230 Solid-State Drive20
Installing the M.2 2230 Solid-State Drive21
Removing the M.2 2280 Solid-State Drive or Intel Optane Memory - Optional23
Installing the M.2 2280 Solid-State Drive or Intel Optane Memory - Optional23
Coin-Cell Battery24
Removing the Coin-Cell24
Installing the Coin-Cell Battery25
Hard Drive26
Removing the Hard Drive Assembly26
Installing the Hard Drive Assembly28
System Fan30
Removing the System Fan30
Installing the System Fan31
Heat Sink33
Removing the Heatsink - UMA33
Installing the Heatsink - UMA33
Removing the Heatsink - Discrete34
Installing the Heatsink - Discrete35
Speakers36
Removing the Speakers36
Installing the Speakers38
IO Board39
Removing the IO Board39
Installing the IO Board41
Touchpad42
Removing the Touch Pad Assembly42
Installing the Touch Pad Assembly44
Display Assembly46
Removing the Display Assembly46
Installing the Display Assembly50
Display Bezel52
Removing the Display Bezel52
Installing the Display Bezel54
Power-Button Board56
Removing the Power Button Board56
Installing the Power Button Board57
Power Button58
Removing the Power Button58
Installing the Power Button59
System Board60
Removing the System Board60
Installing the System Board62
Power-Adapter Port64
Removing the Power Adapter Port64
Installing the Power Adapter Port65
Camera66
Removing the Camera66
Installing the Camera67
Display Panel68
Removing the Display Panel68
Installation Display Panel70
Display Hinges72
Removing the Display Hinges72
Installing the Display Hinges73
Display Cable74
Removing the Display Cable74
Installing the Display Cable75
Display Back-Cover and Antenna Assembly76
Removing the Display Back-Cover76
Installing the Display Back-Cover78
Palm-Rest and Keyboard Assembly79
Removing the Palmrest and Keyboard Assembly79
System Setup81
Boot Menu81
Navigation Keys81
System Setup Options82
General Options82
System Information82
Video83
Security83
Secure Boot84
Intel Software Guard Extensions85
Performance85
Power Management86
POST Behavior87
Virtualization Support88
Wireless88
Maintenance Screen88
System Logs89
Supportassist System Resolution89
System and Setup Password89
Assigning a System Setup Password89
Deleting or Changing an Existing System Setup Password90
Troubleshooting91
Enhanced Pre-Boot System Assessment (Epsa) Diagnostics91
Running the Epsa Diagnostics91
System Diagnostic Lights91
Flashing BIOS (USB Key)92
Flashing the BIOS92
Backup Media and Recovery Options93
Wifi Power Cycle93
Flea Power Release93
Getting Help94
Contacting Dell94

Dell Vostro 3491 - Page 55

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