Replacing the System Board Assembly
1.
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.
2.
Replace the three M2.5 x 5-mm screws on the system board.
3.
Replace any blanks that you removed from the ExpressCard slot or the 8- in-1 card slot.
4.
Connect the speaker cable to the connector on the system board.
5.
Connect the DC power cable to the connector on the system board.
6.
Connect the USB daughter-card cable to the connector on the system board.
7.
Replace the optical drive (see
Replacing the Optical Drive
).
8.
Replace the internal card with Bluetooth wireless technology, if applicable (see
Replacing the Card
).
9.
Replace the palm rest (see
Replacing the Palm Rest
).
10.
Replace the display assembly (see
Replacing the Display Assembly
).
11.
Replace the keyboard (see
Replacing the Keyboard
).
12.
Replace the hinge cover (see
Replacing the Hinge Cover
).
13.
Replace the fan (see
Replacing the Fan
).
14.
Replace the WLAN card (see
Replacing a WLAN Card
).
15.
Replace the hard drive (see
Replacing the Hard Drive
).
16.
Turn on the computer.
17.
Flash update the BIOS (see
Flashing the BIOS
for more information).
18.
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 s
upport.dell.com
.
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3 system board
4 M2.5 x 5-mm system board screws (3)
5 DC-power cable connector 6 USB daughter-card cable connector
7 right side of system board 8 internal card with Bluetooth technology cable connector
9 speaker cable connector
CAUTION:
Before you begin the following procedure, follow the safety instructions that shipped with your computer.
NOTICE:
Ensure that any loose cables do not get caught beneath the system board.
NOTE:
This procedure assumes that you have completed the removal procedure first.
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.
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.
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