Dell Inspiron 6400 Service Manual

Also see for 6400 - Inspiron Laptop: Owner's manual

16. Remove the remaining three M2.5 x 5-mm screws from the system board.17. Remove the speaker connector along with the internal card with Bluetooth® wireless technology connector.18. Remove the system board, slowly easing the connectors out of their access holes on the back and side of the computer base:a. With the back of the computer facing you, grasp the upper-right corner of the system board and lift it slightly.b. Pull the system board assembly away from you toward the front of the computer and slightly to the right; at the same time, use your left hand torelease the audio connectors by pulling the side of the computer base slightly to the left.Replacing the System Board1. Perform all of the steps in Removing the System Board in reverse order.2. Turn on the computer.3. Insert the flash BIOS update program CD that accompanied the replacement system board into the optical drive. Follow the instructions that appear onthe screen. See Flashing the BIOS for further information.4. Enter the system setup program to update the BIOS on the new system board with the computer Service Tag.1 M2.5 x 5-mm screws (3)1 systemboard2 speakerconnector3 cable connector for internal card with Bluetoothwireless technologyNOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result indamage to the computer.NOTE: If you use a BIOS update program CD to flash the BIOS, press before inserting the CD so that you can set up the computer to boot from aCD this one time only. Otherwise, you must enter the system setup program to change the default boot order.