Dell Precision 3520 Owner's Manual page 30

e. SSD card
f. memory module
g. heat sink assembly
h. chassis frame
3. To release the system board:
a. emove the M2x5 screws that secures the metal bracket to the system board [1].
b. Lift the metal bracket that secures the display cable to the system board [2].
c. Disconnect the display cable from the connectors on the system board [3].
d.
4. To remove the system board:
a. Lift the latch and disconnect the LED board, mother board and touchpad cable from the connectors on the system board
[1].
b. Remove the M2x5 screws that secure the metal USB-C port bracket to the system board and lift the bracket away from
the system board [2,3].
30 Disassembly and reassembly