Removing the microprocessor: 2145-CG8 or 2145-CF8

Use this information to remove the SAN Volume Controller 2145-CG8 or 2145-CF8 microprocessor and heat sink.

Before you begin

DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)
Multiple plugs: first set
 or
Multiple plugs: second set
 or
Multiple plugs: third set

Take precautions to avoid damage from static electricity. Wear an anti-static wrist strap and use a static-protected mat or surface.

To correctly perform this task, you must have alcohol wipes and thermal grease available. If you do not already have them, order these separately.

About this task

This service action requires you to remove the cover and:
  • Turn the node off.
  • Disconnect the power cables.
  • Disconnect the data cables.
Attention:
  • Do not permit the thermal grease on the microprocessor and heat sink to come in contact with anything. Contact with any surface can compromise the thermal grease and the microprocessor socket.
  • Use great care when handling microprocessors. Dropping the microprocessor during installation or removal can damage the contacts.
  • Do not touch the microprocessor contacts; handle the microprocessor by the edges only. Contaminants on the microprocessor contacts, such as oil from your skin, can cause connection failures between the contacts and the socket.

To remove a microprocessor and heat sink, complete the following steps:

Procedure

  1. Read the safety information to which Preparing to remove and replace parts refers.
  2. Follow the procedure in MAP 5350: Powering off a node to verify that hosts will not lose access to data in volumes before you power off the node.
  3. Slide the node out on its slide rails to the fully extended position.

    You can accomplish most service actions when the node is fully extended from the rack on its slide rails. You can leave the Fibre Channel and Ethernet cables connected, if you are using the cable-management arm and if you are not removing the node from the rack. If the location of the node in the rack is too high or too low to work comfortably, you can remove the node from the rack.

  4. When the node is completely turned off, remove the cable-retention brackets and disconnect the power cables, as described in Removing the cable-retention bracket.
  5. To make sure that you can replace all cables in the same ports from which they were removed, label the port position of each Fibre Channel and Ethernet cable; then remove all cables from the back of the node.
  6. Optional: Remove the node from the rack and place it on a flat, static-protective surface. See Removing a node from a rack.
  7. Remove the top cover, as described in Removing the top cover: 2145-CG8 or 2145-CF8.
  8. Disconnect any cables that impede access to the heat sink ( 3  in Figure 1) and the microprocessor ( 1 ).
    Figure 1. Removing the heat sink from the SAN Volume Controller 2145-CG8 or 2145-CF8 microprocessor
    Removing the heat sink from the SAN Volume Controller 2145-CG8 or 2145-CF8 microprocessor
    •  1  Microprocessor
    •  2  Heat-sink release lever
    •  3  Heat sink
    •  4  Lock tab
    •  5  Retainer bracket
  9. Push the heat-sink release lever ( 2 ) down and away from the processor, then lift the lever until it is perpendicular to the system board.
  10. Lift the heat sink from the side nearest the lever, in its upright position and remove. After removal, place the heat sink on its side on a clean, flat surface.
  11. Release the microprocessor-release lever ( 2  in Figure 2), by pressing down on the curved end of the lever, moving that end away from the middle of the processor, and releasing the lever up to the open position.
    Figure 2. Opening the SAN Volume Controller 2145-CG8 or 2145-CF8 microprocessor-bracket frame
    SAN Volume Controller 2145-CG8 or 2145-CF8 microprocessor, microprocessor-release lever, and microprocessor-bracket frame
    •  1  Microprocessor
    •  2  Microprocessor-release lever
    •  3  Microprocessor-bracket frame
  12. Open the microprocessor-bracket frame by lifting the tab that is on the top edge. Keep the bracket frame in the open position, as shown in Figure 2.
  13. Locate the microprocessor installation tool that comes with the new microprocessor.
  14. Align the microprocessor installation tool with the screws on the microprocessor bracket and attach the tool to the microprocessor.

    Align the holes on the installation tool with the screws on the microprocessor bracket, then place the microprocessor installation tool down over the microprocessor.

    Twist the handle clockwise to attach the tool to the microprocessor.

    You can pick up or release the microprocessor by twisting the microprocessor installation tool handle.

    Figure 3. Aligning the microprocessor installation tool
    Aligning the microprocessor installation tool
  15. Carefully lift the microprocessor straight up and out of the socket, and place it on a static-protective surface. Be careful to touch only the edges of the microprocessor. Remove the microprocessor from the installation tool by twisting the handle counterclockwise.
    Figure 4. Lifting the microprocessor out of the microprocessor bracket frame
    Lifting the microprocessor out of the microprocessor bracket frame
  16. If you are instructed to return the microprocessor, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Parent topic: Removing the microprocessor