Removing The System Board - Dell Inspiron 4150 Owner's Manual

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System Board
Dell™ Inspiron™ 4150

Removing the System Board

The system board's BIOS chip contains the service tag sequence, which is also visible on a barcode label on the bottom of the computer. The replacement kit
for the system board includes a CD that provides a utility for transferring the service tag sequence to the replacement system board.
NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.
NOTICE: Read "Preparing to Work Inside the
1. Remove the hard drive.
2. Remove the keyboard.
3. Remove the display.
4. Remove the palm rest.
5. Remove the microprocessor thermal cooling
6. Remove the microprocessor.
7. Remove the modem, memory
8. From the bottom of the computer, remove the six M2.5 x 5-mm screws labeled "circle B" that secure the system board to the bottom case.
9. Remove the three M2.5 x 5-mm screws labeled "circle B" that secure the fan guard to the bottom case.
1 fan guard
2 M2.5 x 5-mm screws (9)
10. Turn the computer over and remove the M2.5 x 5-mm screw, which is labeled "circle B" with an arrow, by the battery connector on the front center of
the system board.
Computer" before performing the following procedure.
assembly.
modules, and Mini PCI card.