Upgrading The Microprocessor - Dell OptiPlex GX1 Installation Manual

Upgrading the Microprocessor

To take advantage of future options in speed and functionality, you can replace the microprocessor on your system board with any Dell-supported
microprocessor upgrade. Call your Dell sales representative for information on available microprocessor upgrades.
The microprocessor upgrade kit includes a new single-edge contact (SEC) cartridge with heat sink assembly and an airflow shroud.
CAUTION: Before you remove the computer cover, see
The following procedure describes how to replace the microprocessor.
NOTE: Dell recommends that only a technically knowledgeable person perform this procedure.
CAUTION: Ground yourself by touching an unpainted metal surface on the back of the computer.
1. Remove the computer cover according to the instructions in
2. Rotate the power supply out of the way according to the instructions in
CAUTION: The SEC cartridge and heat sink can get extremely hot during system operation. Be sure the assembly has had
sufficient time to cool before you touch it.
3. Locate the SEC cartridge connector (labeled "SLOT1") on the system board.
See Figure 1.
4. Remove the airflow shroud over the SEC cartridge/heat sink assembly.
Squeeze the tabs on the top of the airflow shroud until the clips under the tabs disengage the top of the heat sink. Then lift the shroud from the
cooling fan and SEC cartridge/heat sink assembly.
5. Remove the SEC cartridge/heat sink assembly from the system board connector (see
Press outward and hold the guide-bracket assembly latches, grasp the SEC cartridge/heat sink assembly firmly, and pull away from the
connector on the system board. Lift the SEC cartridge/heat sink assembly from the guide bracket assembly.
NOTE: You must use up to 15 pounds of force to disengage the SEC cartridge from the connector.
Figure 10. Removing the Microprocessor
6. Insert the new SEC cartridge/heat sink assembly into the system board connector.
Orient the SEC cartridge/heat sink assembly with the heat sink facing the right (as you face the front of the chassis). Align the sides of the
heat sink with the guide brackets and press the SEC firmly into its connector until it is fully seated. The guide brackets will snap into place,
securing the SEC cartridge in the connector on the system board.
NOTE: You must use up to 25 pounds of force to fully engage the SEC cartridge in the connector.
7. Install the airflow shroud over the SEC cartridge/heat sink assembly.
Fit the mouth of the shroud in the alignment slots on the sides of the cooling fan. Then squeeze the tabs on the top of the shroud and lower it
down until the clips under the tabs engage onto the top of the heat sink.
8. Rotate the power supply back into position.
9. Replace the computer cover, and reconnect your computer and peripherals to their electrical outlets and turn them on.
NOTE: If Enabled, the
"Removing the Computer
Chassis Intrusion option will cause the following message to be displayed at the next system start-up:
"Safety First — For You and Your
Cover."
"Rotating the Power Supply Away From the System
Figure
Computer."
Board."
10).