Remove the system I/O board or processor board

Follow instructions in this section to remove the system I/O board or processor board. The procedure must be executed by a trained technician.

Procedure

1. Make preparation for this task.
   1. Record all system configuration information, such as Lenovo XClarity Controller IP addresses, vital product data, and the machine type, model number, serial number, Universally Unique Identifier, and asset tag of the server.
   2. Save the system configuration to an external device with Lenovo XClarity Essentials.
   3. Save the system event log to external media.
2. Remove the following components.
   1. Remove the 2U compute shuttle. See Remove the 2U compute shuttle.
   2. Remove the processor air baffle. See Remove the processor air baffle.
   3. Remove all the processors and the heat sinks. See Remove a processor and Remove a heat sink.
   4. Make sure to label the slot number on each memory module, remove all the memory modules from the system board assembly, and set them aside on a static-protective surface for reinstallation. See Remove a memory module.
      Important

      It is advised to print out the layout of memory module slots for reference.
   5. If applicable, remove the PCIe riser assembly(ies). See Remove a PCIe riser assembly.
   6. If applicable, remove the OCP module. See Remove the OCP module.
3. Disconnect all the cables from the system board assembly. As you disconnect the cables, make a list of each cable and record the connectors the cables are connected to, and use the record as a cabling checklist after installing the new system board assembly.
4. Remove the two cable guides.
   1. Unfasten the six screws to lift the cable guide out of the 2U compute shuttle.
      Figure 1. Cable guide removal
      
      
   2. Repeat to remove the other cable guide.
5. Disengage the system board assembly.
   1. Pull up the rear lifting handle to release the system board assembly.
   2. Grasp both lifting handles and slide the system board assembly toward the front of the 2U compute shuttle.
      Note

      The two lifting handles only serve the purpose of removing system board assembly. Do not attempt to lift the whole 2U compute shuttle with them.

      Figure 2. System board assembly disengagement
      
      

      1 Lifting handles

6. Remove the system board assembly.
   1. Tilt the system board assembly so that its rear end is up.
   2. Hold both lifting handles, and lift the system board assembly out of the 2U compute shuttle.
      Figure 3. System board assembly removal
      
      
7. (Optional) If you are going to replace the system I/O board, remove the firmware and RoT security module from the system I/O board. See Remove the firmware and RoT security module. If you are going to replace the processor board, go to next step directly.
8. Remove the system I/O board from the processor board.
   1. Separate the system board assembly from the supporting sheet metal.
      1. Hold the two lifting handles, and carefully turn the system board assembly upside down.
         Figure 4. Turning the system board assembly upside down
         
         
      2. Use a Phillips #1 screwdriver to remove the two screws from the bottom of the supporting sheet metal.
         Figure 5. Screw removal
         
         
      3. Hold the two lifting handles, and carefully turn the system board assembly right-side up.
         Figure 6. Turning the system board assembly right-side up
         
         
      4. Remove the following components from the system board assembly as illustrated:
         • Use a 5 mm hex socket with a screwdriver to remove the two hex nuts.
         • Use a 7 mm hex socket with a screwdriver to remove the two guide pins.
         • Use a Phillips #2 screwdriver to remove the lifting handle.
         • Use a Phillips #1 screwdriver to remove the fifteen screws
         Figure 7. Component removal
         
         
      5. Separate the system board assembly from the supporting sheet metal.
         Figure 8. System board assembly disassembly

         
         
         
   2. Grasp the system I/O board by its edges, and carefully pull it out of the processor board.
      Figure 9. System I/O board removal