Dell Studio 1457 (Late 2009) - Manual (Page 44)

13. Disconnect the following cables from their corresponding connectors on the system board:
l Fan cable — pull the cable away from the connector
l AC adapter cable — pull the cable away from the connector
l WWAN module cable — lift the black tab and pull the cable away from the connector
l I/O board cable — lift the black tab and pull the cable away from the connector
l Network cable — pull the cable away from the 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.
Replacing the System Board
1. Follow the instructions in Before You Begin .
2. Place the system board on the computer base.
1 Fan cable connector 2 AC adapter cable connector
3 WWAN module cable connector 4 I/O board cable connector
5 Network cable connector
1 screws (5) 2 system board