Closing The Computer Cover - Dell Dimension 4300S Manual

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Remove the computer stand, if it is attached.
5. Open the computer cover.
NOTICE: The system board and the metal tray are attached and are removed as one piece.
6. Remove the card cage.
7. Remove or move any components that restrict access to the system board.
8. Disconnect all cables from the system board.
Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have
the correct part.
NOTICE: Release the tab on the system board before you remove the system board.
9. Pull up on the tab and slide the system board toward the front of the computer; lift it up and away.
10. Place the system board that you just removed next to the replacement system board.
Replacing the System Board
1. Transfer components from the existing system board to the replacement system board.
a. Remove the memory modules and install them
CAUTION: The microprocessor package and heat sink assembly can get hot. To avoid burns, be sure that the package and assembly have had
sufficient time to cool before you touch them.
b. Remove the heat sink assembly and microprocessor package
2. Configure the settings of the replacement system board.
Set the jumper on the replacement system board so it is identical to the one on the existing board.
3. Orient the replacement board by aligning the notches on the bottom to the tabs on the computer floor.
4. Slide the board toward the back of the computer until it clicks into place.
5. Replace any components and cables that you removed from the system board.
6. Close the computer cover.
7. Attach the computer stand
8. Connect your computer and devices to their electrical outlets, and turn them on.
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.

Closing the Computer Cover

on the replacement board.
(optional).
from the existing system board and transfer it to the replacement system board.