Dell Latitude E7440 - System Board Replacement

Installing the Heatsink
1. Place the heatsink into its original position on the system board.
2. Tighten the screws to secure the heatsink to the system board.
3. Install:
a) system board
b) display assembly
c) display-hinge cover
d) speaker
e) palmrest
f) keyboard
g) keyboard trim
h) hard drive
i) base cover
j) battery
k) SD card
4. Follow the procedures in After Working Inside Your Computer .
Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) SD card
b) battery
c) base cover
d) hard drive
e) keyboard trim
f) keyboard
g) palmrest
h) speaker
i) display-hinge cover
j) display assembly
3. Perform the following steps as shown in the illustration: Disconnect the I/O and speaker cables from the system
board.
a) Lift the I/O latch [1].
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