Replacing the System Board

1Replace the processor. See "Replacing the Processor" on page 87.

2Replace the heat sink. See "Replacing the Heat Sink" on page 83.

3Connect the power-adapter port cable to the system-board connector.

4Turn the system-board assembly over.

5Slide the connectors on the system-board assembly into the slots on the computer base.

6Replace the screws that secure the system-board assembly to the computer base.

7Align the screw hole on the power-adapter port with the screw hole on the computer base.

8Replace the screw that secures the power-adapter port to the computer base.

9Connect the display cable, speakers cable, and LAN-USB cable to the connectors on the system board.

10Close the display and turn the computer over.

11Connect the subwoofer cable to the system-board connector.

1Replace the fan. See "Replacing the Fan" on page 48

2Replace the palm rest. See "Replacing the Palm Rest" on page 41.

3Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 33.

4Replace the mSATA card. See "Replacing the mSATA Card" on page 37.

5Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 29.

6Follow the instructions from step 4 to step 6 in "Replacing the Hard Drive(s)" on page 26.

7Replace the memory module(s). See "Replacing the Memory Module(s)" on page 22.

8Replace the base cover. See "Replacing the Base Cover" on page 20.

9Replace the keyboard. See "Replacing the Keyboard" on page 18.

10Replace the battery. See "Replacing the Battery" on page 13.

11Follow the instructions in "After Working Inside Your Computer" on page 11.

System Board

Dell 17R-7720, 17R-5720 owner manual Replacing the System Board