Dell Precision 7520 - System Board; Removing the System Board

b palmrest
c keyboard
d hard drive
e base cover
f battery
g battery cover
4 Follow the procedure in After working inside your computer.
System board
Removing the system board
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a SD card
b battery cover
c battery
d base cover
e hard drive
f keyboard
g hard drive cable
h secondary memory
i primary memory
j WLAN card
k WWAN card
l M.2 SSD card
m graphic card
n power connector port
o palmrest
p I/O board (left)
q I/O board (right)
r heat sink
3 To disconnect and remove the eDP cable:
a Remove the M2.5x5.0 screw that secure the shield to the system board [1].
b Lift the metal shield away from the eDP cable [2].
c Disconnect the eDP cable [3].
d Lift the tab and disconnect the power connector cable [4].
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Disassembly and reassembly