Replacing the SAN Volume Controller 2145-8F4 or SAN Volume Controller 2145-8F2 microprocessor

The SAN Volume Controller 2145-8F4 or SAN Volume Controller 2145-8F2 must always be fitted with both microprocessors in order to function correctly.

The documented steps to replace the SAN Volume Controller 2145-8F4 or SAN Volume Controller 2145-8F2 microprocessor assume that you:
Perform the following steps to replace the SAN Volume Controller 2145-8F4 or SAN Volume Controller 2145-8F2 microprocessor:
  1. Touch the static-protective package that contains the new microprocessor to any unpainted metal surface on the node.
  2. Remove the microprocessor from the package.
  3. Rotate the locking lever Reference key three from the closed position to the open position, as shown in Figure 1.
    Figure 1. Microprocessor locking lever in open positionThis figure shows the microprocessor locking lever in the open position
    • Reference key one Microprocessor
    • Reference key two Corner marks
    • Reference key three Locking lever
    • Reference key four Microprocessor socket
  4. Center the microprocessor Reference key one over the microprocessor socket Reference key four.
  5. Align the triangle Reference key two on the corner of the microprocessor with the triangle on the corner of the socket and carefully press the microprocessor into the socket.
    Attention: Do not use excessive force when pressing the microprocessor into the socket.
  6. Close the lever.
    Note: A voltage regulator module (VRM) and a heat sink are included in the microprocessor package.
    • Do not set the heat sink down after removing it from the package.
    • Do not touch or contaminate the thermal grease on the bottom of the heat sink. Doing so damages its heat-conducting capability and exposes the microprocessor to overheating.
    • If you must remove the heat sink after installing it, note that the thermal grease might have formed a strong bond between the heat sink and the microprocessor. Do not force the heat sink and microprocessor apart; doing so causes damage to the microprocessor pins. Loosen one captive screw fully before loosening the other captive screw to help break the bond between the components without damaging them.
  7. Install the heat sink Reference key two on top of the microprocessor Reference key three, as shown in Figure 2.
    Figure 2. Microprocessor and heat sink locationsThis figure shows the microprocessor and heat sink location
    • Reference key one VRM
    • Reference key two Heat sink
    • Reference key three Microprocessor
  8. Tighten the captive screws. Alternate between the screws until they are all tightened. Do not overtighten.
  9. Replace the top cover. See Replacing the top cover.
  10. Place the node in the rack. See Replacing the SAN Volume Controller in a rack.
  11. Reconnect the power cords and any cables that were removed.
  12. Turn on the node.
Parent topic: Replacing the microprocessor
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