The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the base of the computer. The replacement kit for the system board includes media that provide a utility for transferring the Service Tag to the replacement system board.
Removing the System Board Assembly
CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.
Insert the left side of the system board into the base of the computer at an
angle until the connectors on the system board are aligned with the holes
on the base of the computer, then carefully lower the system board into
place.
Replace the three M2.5 x 5-mm screws on the system board.
Connect the 1394/USB daughter-card cable to the connector on the
system board.
Replace any blanks you removed from the ExpressCard slot and the 8-in-1
card slot.
NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer.
Turn on the computer.
NOTE: If you use a BIOS update program media to flash the BIOS, press <F12> before inserting the media in order to set the computer to boot from the media for one time only. Otherwise, you must enter the system setup program to change the default boot order.
Enter the system setup program to update the BIOS on the new system
board with the computer Service Tag. For information on the system
setup program, see the Dell Technology Guide on your computer
or at
support.dell.com.