Installing The System Board; Smartcard Module; Removing The Smartcard Reader - Dell Precision 3520 Owner's Manual

Installing the system board

1 Align the system board with the screw holders on the computer.
2 Tighten the M2.0x3.0 screws to secure the system board to the computer.
3 Place the metal bracket and tighten the M2.0x5.0 screws on the system board.
NOTE: The metal bracket referred is the USB-C bracket.
4 Connect the LED, mother board and touchpad cable to the system board.
5 Connect the power cable.
6 Connect the display cable on the system board.
7 Place the eDP cable and metal bracket to system board and tighten the M2.0x3.0 screws to secure to the system board.
8 Install the:
a chassis frame
b coin cell battery
c heat sink assembly
d memory module
e SSD card or hard drive
f WWAN card
g WLAN card
h battery
i base cover
j SIM card module
9 Follow the procedure in

SmartCard module

Removing the SmartCard reader

1 Follow the procedure in
2 Remove the:
a base cover
b battery
c WLAN card
d WWAN card
e SSD card or hard drive
f chassis frame
3 To release the SmartCard reader:
a Disconnect the SmartCard reader board cable from the connector [1].
b Peel off the cable to release from the adhesive [2].
30 Removing and installing components
After working inside your computer.
Before working inside your computer.