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Processor

Dell™ OptiPlex™ GX280 Systems User's Guide

  Removing the Processor

  Installing the Processor

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

Removing the Processor

1. Follow the procedures in "Before You Begin."
   
   
2. Disconnect the cooling fan power cable from the FAN connector on the system board.
   
   
3. Disconnect the power cable from the 12VPOWER connector on the system board.
   
   

CAUTION: The heat sink can get very hot during normal operation. Be sure that the heat sink has had sufficient time to cool before you touch it.

4. Remove the heat sink/blower assembly:
   
   
   1. Press the tab on the green securing clip to remove the clip from the retention base.
      
      

NOTE: Your computer's heat sink may differ in appearance than illustrated below, but is removed and reinstalled in the same manner.

1	securing clip
2	tab
3	retention base

2. Remove the heat sink by pressing the tab while lifting one end of the heat sink.
   
   

NOTICE: Lay the heat sink down with the thermal material facing upward.

NOTE: Your computer's heat sink may differ in appearance than illustrated below, but is removed and reinstalled in the same manner.

1	heat-sink/blower assembly	4	retention base
2	screw	5	heat sink
3	tab	6	screw

5. Remove the two screws on the blower to remove it from the heat sink.
   
   

NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat sink. If you are not installing a processor upgrade kit from Dell, reuse the original heat sink when you install your new processor.

6. Open the processor cover.
   
   

1	processor cover
2	processor
3	socket
4	release lever

NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket.

7. Remove the processor from the socket.
   
   

Leave the release lever extended in the release position so that the socket is ready for the new processor.

Installing the Processor

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket.

1. Unpack the new processor, being careful not to touch the underside of the processor.
   
   

NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer.

2. If the release lever on the socket is not fully extended, move it to that position.
   
   
3. Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket.
   
   
4. Align the pin-1 corners of the processor and socket.
   
   

1	processor cover	6	release lever
2	tab	7	front alignment notch
3	processor	8	socket and processor pin-1 indicator
4	processor socket	9	rear alignment notch
5	center cover latch

NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor.

5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.
   
   
6. When the processor is fully seated in the socket, close the processor cover.
   
   

Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket.

7. Pivot the socket release lever back toward the socket and snap it into place to secure the processor.
   
   

NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat sink assembly when you replace 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.

8. Reinstall the two screws that attach the blower to the heat sink.
   
   
9. Install the heat sink/blower assembly:
   
   
   1. Place one end of the heat sink under the tab on one side of the retention base.
      
      
   2. Lower the heat sink until the heat sink fits securely under the tab on the retention base.
      
      
   3. Insert the securing clip by placing the notched end of the clip opposite the tab into the slot on the retention base. Press the securing clip tab and lower the securing clip into place. Make sure that the notched ends of the securing clip are secured in the retention base slots.
      
      

NOTE: Your computer's heat sink may differ in appearance than illustrated below, but is removed and reinstalled in the same manner.

1	heat-sink/blower assembly	4	retention base
2	screw	5	heat sink
3	tab	6	screw

1	securing clip
2	tab
3	slot
4	retention base

10. Reconnect the cooling fan power cable to the FAN connector on the system board.
    
    
11. Reconnect the power cable to the 12VPOWER connector on the system board.
    
    
12. Close the computer cover.
    
    

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

13. Connect your computer and devices to electrical outlets, and turn them on.
    
    

After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up:

ALERT! Cover was previously removed.

14. Reset the chassis intrusion detector by changing Chassis Intrusion to On or On-Silent.
    
    

NOTE: If an admin password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

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