13.Disconnect the following cables from their corresponding connectors on the system board: Fan cable — pull the cable away from the connector

AC adapter cable — pull the cable away from the connector

WWAN module cable — lift the black tab and pull the cable away from the connector I/O board cable — lift the black tab and pull the cable away from the connector

Network cable — pull the cable away from the connector

1

Fan cable connector

2

AC adapter cable connector

3

WWAN module cable connector

4

I/O board cable connector

5Network cable connector

14.Remove the five screws that secure the system board to the computer base.

15.Lift the system board at an angle toward the side of the computer and out of the computer base.

1

screws (5)

2

system board

 

 

 

 

 

 

 

 

 

 

 

Replacing the System Board

1.Follow the instructions in Before You Begin.

2.Place the system board on the computer base.

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Image 44
Dell 1457, 1458 manual Replacing the System Board