Removing The System Board; Installing The System Board - Dell Dimension 4700 Series Service Manual

Removing the System Board

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
1. Follow the procedures in "Before You
2. Remove the floppy drive. To remove the floppy drive, see
3. Remove any cards that are installed.
4. Disconnect all cables from the system board.
5. Lift up the heat-sink shroud.
CAUTION: The microprocessor heat sink can get hot. To avoid burns, ensure that the heat sink has had sufficient time to cool before you touch it.
6. Remove the microprocessor heat
7. Remove the fan assembly.
8. Remove the 12 screws that secure the system board to the computer frame.
Four of the 12 screws that secure the system board to the computer frame also secure the heat-sink base to the system board.
9. Lift the system board out from the computer.
10. Place the system board that you just removed next to the replacement system board.
Visually compare the replacement system board to the existing system board to ensure that you have the correct part.

Installing the System Board

1. Transfer components from the existing system board to the replacement system board:
a. Remove the memory modules
CAUTION: The microprocessor package can get hot. To avoid burns, ensure that the package has had sufficient time to cool before you touch it.
b. Remove the microprocessor
2. Configure the settings of the replacement system board.
Begin."
"Installing a Floppy
sink.
and install them on the replacement board.
package from the existing system board and transfer it to the replacement system board.
Drive."