Dell 8400 Computer Accessories User Manual


 
6. Pivot the socket release lever back toward the socket and snap it into place to secure the processor.
If you installed a processor replacement kit from Dell, return the original heat sink assembly and processor to Dell in the same package in which your
replacement kit was sent.
7. Install the heat sink:
a. Slide one end of the heat sink under the retention tab.
b. Pull out the other retention tab and lower the heat sink until it fits securely in the base.
8. Reinstall the retention module clips.
9. Lower the airflow shroud over the heat sink.
10. Reconnect the cooling fan power cable to the fan connector on the system board.
11. Reconnect the power cable to the power connector on the system board.
12. Close the computer cover.
13. Connect your computer and devices to electrical outlets, and turn them on.
System Board
Removing the System Board
1. Follow the procedures in "Before You Begin."
NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat sink assembly when you replace the processor.
NOTICE: Ensure the heat sink is correctly seated and secure.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of
your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
NOTICE: The system board and metal tray are connected and are removed as one piece.