Dell Vostro 14-3459 Owner's Manual page 22

4. Perform the following steps as shown in the illustration:
a. Flip the computer and lift the locking tab to disconnect the LVDS cable [1, 2].
b. Disconnect the speaker cable [3].
c. Remove the screw that secures the power connector to the chassis [4].
d. Unroute the power connector cable [5].
5. Perform the following steps as shown in the illustration:
a. Remove the screw that secures the system board to the chassis [1].
b. Lift and remove the system board along with the power connector from the chassis [2].
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