Replacing the system processor module in the 8408-44E or 8408-E8E

To replace the system processor module, complete the steps in this procedure.

1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
2. Ensure that you are wearing a pair of supplied Nitrile gloves. You must wear Nitrile gloves (part number 00RY410) when you handle the replacement system processor module, thermal interface material (TIM), and replacement heat sink.
3. Lower the supplied removal tool onto the system processor module in the shipping tray. The beveled corner (A) of the tool must align with the triangle-shaped hole on the shipping tray. Align the holes (B) of the tool with the pins (C) on the tray. See Figure 1.
   Figure 1. Lowering the removal tool onto the system processor module

   
4. Push down on the tool at the locations that are indicated by the arrows to lock the system processor module into the removal tool. See Figure 2. Do not press the blue release tabs until directed to do so later.
   Note: The tool drops slightly when you push down so that the jaws can grab the bottom of the system processor module.
   Figure 2. Locking the replacement system processor module in the removal tool

   
5. Grasp the sides of the tool and system processor module and carefully lift it slightly out of the system processor module tray. Then, turn it over so that the system processor module side is up. Ensure that both tool jaws (A) are firmly grabbing the system processor module, as shown in Figure 3.
   Note: If both jaws are not firmly grabbing the system processor module, press down on the corner of the system processor module closest to the jaw until it locks into place. Do not touch any part of the system processor module other than the corners.
   Figure 3. Making sure that the system processor module is securely locked in tool

   
6. If dust or debris is present on the system processor socket, use the supplied air pump (part number 45D2645) to clean the socket. Blow small bursts of air from the center toward the sides of the socket.
   Figure 4. Removing dust and debris from the system processor socket

   
7. Lower the tool and system processor module onto the socket. Ensure that the two guide pins are inserted into the alignment holes on each side of the tool, as shown in Figure 5.
   Note: Do not attempt to slide the tool and the system processor module in any direction while the system processor module is touching the socket. If the tool and the system processor module are not aligned with the guide pins, lift the tool and the system processor module and reposition them.
   Figure 5. Lowering the system processor module onto the socket

   
8. After the system processor module is properly aligned, squeeze and hold the two blue release tabs (A) together until a firm stop is reached, as shown in Figure 6. Then, lift the tool off the system processor module.
   Figure 6. Removing the system processor module tool

   
9. Install the new supplied thermal interface material (TIM) that is provided in the FRU kit (part number 00LR426), onto the processor module.
   1. Open the TIM packaging and carefully remove the TIM, holding it by the edges of the carrier strip and holding it away from the shipping container.
   2. Remove the protective film from the clear carrier strip by using the supplied tweezers (part number 15R8943).
      Note: The TIM must remain flat. Small wrinkles are acceptable, but folds are not acceptable.
   3. Align one of the two 45-degree chamfers of the TIM with the processor module chamfer (A) as shown in Figure 7.
      Note: The red stripe on the TIM must be facing up.
   4. Center the TIM onto the processor module.
   Figure 7. Installing the thermal interface material

   
10. Clean the new heat sink bottom surface with the lint-free cloth that is supplied in the glove kit.
11. Install the new supplied heat sink that is provided in the FRU kit (part number 00LR426). Carefully lower the heat sink over the system processor module, ensuring that the holes in the heat sink (A) align with the two guide pins (B) on the socket, as shown in Figure 8.
    Figure 8. Installing the heat sink

    
12. Move the load arm (A) into position over the heat sink (B) and tighten the load arm screw with the supplied T-handle T20 Torx driver (part number 00LR425), as shown in Figure 9.
    Note: Do not overtighten the load arm screw.
    Figure 9. Tightening the load arm screw

    
13. Lightly grip the system processor module that you replaced by the edges and lift it off the shipping cover. Align the beveled corner of the module (A) to the corner of the tray with the triangle (B) and place it in the tray, as shown in Figure 10.
    Figure 10. Placing the system processor module into the shipping tray