Dell Inspiron 15 5518 Service Manual page 55

NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You
must make the appropriate changes again after you replace the system board.
The following image indicates the connectors on your system board.
Figure 2. System board connectors
1. Display cable connector
2. Power-adapter port cable connector
3. Keyboard backlit cable connector
4. Keyboard cable connector
5. Touchpad cable connector
6. Battery cable connector
7. Fan cable connector
8. Speaker cable connector
9. I/O-board cable connector
The following image indicates the location of the system board and provides a visual representation of the installation procedure.
Removing and installing components 55