Upgrading the Microprocessor

Upgrading the Microprocessor

NOTE: Dell recommends that only a technically knowledgeable person perform the following procedure.

CAUTION: Before you remove the computer cover, see "Safety First — For You and Your Computer."

1. Remove the computer cover according to the instructions in "Removing and Replacing the Computer Cover."
   
   
2. Disconnect the fan cable from the system board (if fan is mounted to the heat sink).
   
   

   NOTE: The fan is mounted on the chassis in the mini-tower system.

3. Gently pull out the guide-bracket assembly latch, grasp the existing microprocessor/heat sink assembly firmly, and pull straight up to remove it from the guide bracket assembly.
   
   You must use up to 15 pounds of force to disengage the microprocessor package from the connector. Do not rock the package while removing it.
   
   
4. Slide the new microprocessor package into the guide bracket assembly, with the heat sink toward the front of the computer, and firmly seat the microprocessor/heat sink assembly.
   
   You must use up to 25 pounds of force to seat the new microprocessor package. Do not rock the package while inserting it into the connector.
   
   

Figure 1. Microprocessor Heat Sink (Small-Form-Factor and Low-Profile Chassis)

1 Fan 2 Guide bracket assembly 3 Guide bracket assembly latch 4 Heat sink

5. Reconnect the fan cable (if necessary).
   
   
6. Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on.
   
   

   NOTE: After you remove and replace the cover, the chassis intrusion detector will cause the following message to be displayed at the next system start-up:

   ALERT! Cover was previously removed.

7. Enter System Setup, and confirm that the top line in the system data  area correctly identifies the installed microprocessor.
   
   
8. While in System Setup, reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.
   
   
9. Run the Dell Diagnostics to verify that the new microprocessor is operating correctly.

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