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Contents

  1. Preface
  2. Chapter 1 Before Starting Maintenance Work
    1.  1.1 Warning/Caution Indications
    2.  1.2 Warning Labels
    3.  1.3 Labels/Tags
    4.  1.4 Safety Precautions
    5.  1.5 Precautions on Static Electricity
    6.  1.6 Other Precautions
    7.  1.7 Emergency Power Off
  3. Chapter 2 Understanding the System Components
    1.  2.1 Identifying the Names and Locations of Components
    2. Click 2.2 Checking the Memory Configuration Rules
    3. Click 2.3 Confirming the Functions of the Operation Panel
    4. Click 2.4 Checking the LED Indications
    5. Click 2.5 Confirming the Types of Cable
  4. Chapter 3 Types of Maintenance
    1.  3.1 Types of Maintenance Supported in the SPARC M10-4/M10-4S
    2.  3.2 Active Maintenance
    3.  3.3 Inactive Maintenance
    4.  3.4 System-stopped Maintenance
  5. Chapter 4 Preparation and Precautions for Maintenance
    1. Click 4.1 Confirming the System Configuration
    2. Click 4.2 Troubleshooting
    3. Click 4.3 Maintenance Precautions
  6. Chapter 5 Preparations Required for Maintenance
    1.  5.1 Preparing Tools Required for Maintenance
    2.  5.2 Switching the Mode Switch to Service Mode
    3. Click 5.3 Checking the Operating Condition and Resource Usage Status
    4. Click 5.4 Preparations for Enabling Active Maintenance
    5.  5.5 Powering Off the Physical Partition Requiring Maintenance
    6. Click 5.6 Stopping the Entire System
    7.  5.7 Saving XSCF Setting Information
    8. Click 5.8 Releasing a SPARC M10-4/M10-4S FRU from the System with the replacefru Command
    9. Click 5.9 Accessing a FRU
  7. Chapter 6 Restoring the System
    1. Click 6.1 Restoring the Chassis
    2. Click 6.2 Incorporating a SPARC M10-4/M10-4S FRU into the System with the replacefru Command
    3. Click 6.3 Diagnosing a Replacement FRU
    4.  6.4 Restoring XSCF Setting Information
    5. Click 6.5 Incorporating a Chassis and I/O Device into a Physical Partition
    6.  6.6 Returning the Mode Switch to Locked Mode
    7.  6.7 Powering On the Physical Partition Requiring Maintenance
    8. Click 6.8 Starting the Entire System
  8. Chapter 7 Maintenance Flow
    1.  7.1 Maintenance Workflow
    2. Click 7.2 FRU Replacement Workflow
    3. Click 7.3 FRU Installation Workflow
    4. Click 7.4 FRU Removal Workflow
  9. Chapter 8 Maintaining the PCI Express Cards
    1.  8.1 Before Maintaining a PCI Express Card
    2.  8.2 PCI Express Card Configuration
    3.  8.3 FRU Removal and Installation Flow
    4. Click 8.4 Removing a PCI Express Card
    5. Click 8.5 Installing a PCI Express Card
  10. Chapter 9 Maintaining the CPU Memory Unit/Memory
    1.  9.1 Before Maintaining a CPU Memory Unit/Memory
    2. Click 9.2 Configuration of the CPU Memory Unit and Memory
    3.  9.3 Maintenance Precautions
    4.  9.4 FRU Removal and Installation Flow
    5. Click 9.5 Removing a CPU Memory Unit
    6.  9.6 Installing a PCI Express Cable
    7.  9.7 Switching the microSD Card
    8.  9.8 Removing Memory
    9.  9.9 Installing Memory
    10. Click 9.10 Installing a CPU Memory Unit
    11.  9.11 Checking the XCP Firmware Version
    12.  9.12 Checking the XCP Firmware Version (Building Block Configuration)
  11. Chapter 10 Maintaining the Internal Disks
    1.  10.1 Before Maintaining an Internal Disk
    2.  10.2 Configuration of the Internal Disks
    3.  10.3 FRU Removal and Installation Flow
    4.  10.4 Removing an Internal Disk
    5.  10.5 Installing an Internal Disk
  12. Chapter 11 Maintaining the Fan Units
    1.  11.1 Before Maintaining a Fan Unit
    2.  11.2 Configuration of the Fan Units
    3.  11.3 Removing a Fan Unit
    4.  11.4 Installing a Fan Unit
  13. Chapter 12 Maintaining the Power Supply Units
    1.  12.1 Before Maintaining a Power Supply Unit
    2.  12.2 Configuration of the Power Supply Units
    3.  12.3 Removing a Power Supply Unit
    4.  12.4 Installing a Power Supply Unit
  14. Chapter 13 Maintaining the PSU Backplane Unit/Operation Panel
    1.  13.1 Before Maintaining the PSU Backplane Unit/Operation Panel
    2.  13.2 Locations of the PSU Backplane Unit and Operation Panel
    3.  13.3 Maintenance Precautions
    4.  13.4 FRU Removal and Installation Flow
    5. Click 13.5 Removing the PSU Backplane Unit/Operation Panel
    6. Click 13.6 Installing the PSU Backplane Unit/Operation Panel
  15. Chapter 14 Maintaining the Crossbar Cables
    1.  14.1 Before Maintaining a Crossbar Cable
    2.  14.2 Configuration of the Crossbar Cable Connection Ports
    3.  14.3 Removing the Crossbar Cables
    4.  14.4 Installing the Crossbar Cables
  16. Chapter 15 Maintaining the Crossbar Units
    1.  15.1 Before Maintaining a Crossbar Unit
    2.  15.2 Configuration of the Crossbar Units
    3.  15.3 Removing a Crossbar Unit
    4.  15.4 Installing a Crossbar Unit
  17. Chapter 16 Maintaining the XSCF BB Control Cables
    1.  16.1 Before Maintaining an XSCF BB Control Cable
    2.  16.2 Configuration of the XSCF BB Control Ports
    3.  16.3 Removing an XSCF BB Control Cable
    4.  16.4 Installing an XSCF BB Control Cable
  18. Chapter 17 Maintaining the XSCF DUAL Control Cables
    1.  17.1 Before Maintaining an XSCF DUAL Control Cable
    2.  17.2 Configuration of the XSCF DUAL Control Ports
    3.  17.3 Removing an XSCF DUAL Control Cable
    4.  17.4 Installing an XSCF DUAL Control Cable
  19. Appendix A Component List
  20. Appendix B Component Specifications
    1.  B.1 CPU Memory Unit
    2.  B.2 Crossbar Unit
    3.  B.3 Power Supply Unit
    4.  B.4 Fan Unit
    5.  B.5 Internal Disk Drive
    6.  B.6 PCI Express Card
    7.  B.7 Backplanes
    8.  B.8 Operation Panel
  21. Appendix C Oracle Solaris Troubleshooting Commands
    1.  C.1 iostat Command
    2.  C.2 prtdiag Command
    3.  C.3 prtconf Command
    4.  C.4 netstat Command
    5.  C.5 ping Command
    6.  C.6 ps Command
    7.  C.7 prstat Command
  22. Appendix D External Interface Specifications
    1. Click D.1 Serial Port
    2.  D.2 USB Port
    3.  D.3 SAS Port
    4.  D.4 RESET Switch
  23. Appendix E Removing the Lithium Battery
    1.  E.1 Location of the Lithium Battery
    2.  E.2 Removing the Lithium Battery

9.6 Installing a PCI Express Cable


9.6 Installing a PCI Express Cable
Note - A part of the procedure varies depending on the CPU memory unit type. To determine the CPU memory unit type, check the label in Figure 9-2.
Connect the CPU memory unit lower and CPU memory unit upper with a PCIe cable.
Before installing a CPU memory unit upper, confirm that PCIe cables are connected to the CPU memory unit lower.
If PCIe cables have not been connected to the CPU memory unit lower, remove the CPU memory unit board (lower) once, and connect PCIe cables.
If PCIe cables are connected to the CPU memory unit lower, this work is not required.
Note - If PCIe cables have not been connected to the CPU memory unit lower when you are installing a CPU memory unit upper, use the PCIe cables supplied with the CPU memory unit upper.
  1. Remove the eight screws from both sides of the XSCF cable connection ports on the rear of the CPU memory unit lower.
    Use a flathead screwdriver (small) to remove them.
    For the SPARC M10-4 with a FRAME-A CPU memory unit and the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit, this step is not necessary.
Figure 9-18  Screws for both ends of the XSCF cable connection ports (for the SPARC M10-4S with a FRAME-A CPU memory unit)
Figure 9-18 Screws for both ends of the XSCF cable connection ports (for the SPARC M10-4S with a FRAME-A CPU memory unit)
  1. Loosen the two screws holding the upper part of the rear of the CPU memory unit lower. Then, remove the rear cover (A in Figure 9-19) by pulling it in the direction of the arrow.
Figure 9-19  Removing the rear cover
Figure 9-19 Removing the rear cover
  1. Remove and pull out the XSCF board.
    - For the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit
    Remove the three screws securing the XSCF board (A in Figure 9-20) and rear cover. Tilt the right lever of the XSCF mount with your fingers by about 5 mm (0.2 in.) to the right (B in Figure 9-20). Lift the right side of the XSCF board to release the connection of the connector (C in Figure 9-20).
Figure 9-20  Releasing a connected XSCF board (for SPARC M10-4 with a FRAME-A CPU memory unit)
Figure 9-20 Releasing a connected XSCF board (for SPARC M10-4 with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit
    Remove the four screws securing the XSCF board (A in Figure 9-21). Then, lift the right side of the XSCF board to release the connection of the connector.
Figure 9-21  Releasing a connected XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-21 Releasing a connected XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
  1. Pull out the XSCF board diagonally to the right (arrow).
Note - Place the removed XSCF board on a grounded antistatic ESD mat.
Figure 9-22  Pulling out an XSCF board (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-22 Pulling out an XSCF board (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-23  Pulling out an XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-23 Pulling out an XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
  1. Remove the screw securing the XSCF mount.
  1. - For the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit
    Remove the one screw securing the XSCF mount (A in Figure 9-24 and Figure 9-25).
Figure 9-24  Screw for the XSCF mount (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-24 Screw for the XSCF mount (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-25  Screw for the XSCF mount (for the SPARC M10-4S with a FRAME-A CPU memory unit)
Figure 9-25 Screw for the XSCF mount (for the SPARC M10-4S with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4S with a FRAME-B CPU memory unit
    Remove the two screws securing the XSCF mount (A in Figure 9-26).
Figure 9-26  Screw for the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
Figure 9-26 Screw for the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
  1. Remove the XSCF mount.
  1. - For the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit
    Lift the protruding left lever (B in Figure 9-27 and Figure 9-28) of the XSCF mount (A in Figure 9-27 and Figure 9-28) by about 2 mm (0.1 in.) with your fingers, and slide it about 8 mm (0.4 in.) toward the front (C in Figure 9-27 and Figure 9-28). Then, pull it upward to remove it (D in Figure 9-27 and Figure 9-28).
Figure 9-27  Removing the XSCF mount (for the SPARC M10-4 with a FRAME-A CPU memory unit)
Figure 9-27 Removing the XSCF mount (for the SPARC M10-4 with a FRAME-A CPU memory unit)
Figure 9-28  Removing the XSCF mount (for the SPARC M10-4S with a FRAME-A CPU memory unit)
Figure 9-28 Removing the XSCF mount (for the SPARC M10-4S with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4 with a FRAME-B CPU memory unit
    Slide the right side of the XSCF mount (A in Figure 9-29) by about 8 mm (0.4 in.) toward the front (B in Figure 9-29). Then, pull it upward to remove it (C in Figure 9-29).
Figure 9-29  Removing the XSCF mount (for the SPARC M10-4 with a FRAME-B CPU memory unit)
Figure 9-29 Removing the XSCF mount (for the SPARC M10-4 with a FRAME-B CPU memory unit)
  1. - For the SPARC M10-4S with a FRAME-B CPU memory unit
    Pull the XSCF mount upward (A in Figure 9-30) to remove it (B in Figure 9-30).
Figure 9-30  Removing the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
Figure 9-30 Removing the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
  1. Remove the screws securing the CPU memory unit board.
  1. - For the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit
    Remove the one black screw (A in Figure 9-31) securing the center part of the radiator on the front and the four screws securing the CPU memory unit board (B in Figure 9-31).
Figure 9-31  Screws on the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
Figure 9-31 Screws on the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit
    Remove the one black screw (A in Figure 9-32) securing the center part of the radiator on the front and the six screws securing the CPU memory unit board (B in Figure 9-32).
Figure 9-32  Screws on the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit)
Figure 9-32 Screws on the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit)
  1. Place your thumbs on the frame, at the center on the right and left sides of the CPU memory unit board (A in Figure 9-33), and insert your fingers under the CPU memory unit board (B in Figure 9-34) from the sides of the connector unit.
Note - Be careful not to touch or catch your clothes or wrist strap on a connector pin located on the back of the CPU memory unit board.
Note - Hard objects such as a machine tools should not come in contact with the connector located on the back side of the CPU memory unit board.
Figure 9-33  Finger position when releasing the connection of the connector (surface)
Figure 9-33 Finger position when releasing the connection of the connector (surface)
Figure 9-34  Finger position when releasing the connection of the connector (back)
Figure 9-34 Finger position when releasing the connection of the connector (back)
  1. Supporting the frame with your thumbs (A in Figure 9-35), disconnect the connector by pushing up the left and right sides at the same time with the fingers that are inserted under the CPU memory unit board (B in Figure 9-35).
Figure 9-35  How to disconnect the connector
Figure 9-35 How to disconnect the connector
  1. Place your thumbs on the connector unit at the center on the right and left sides of the CPU memory unit board (A in Figure 9-36) and hold the board by inserting your fingers under the CPU memory unit board (B in Figure 9-37) from the sides of the connector unit.
Note - Place the removed CPU memory unit board on a grounded antistatic ESD mat.
Figure 9-36  Finger position when holding the board (surface)
Figure 9-36 Finger position when holding the board (surface)
Figure 9-37  Finger position when holding the board (back)
Figure 9-37 Finger position when holding the board (back)
  1. Lift the CPU memory unit board in the horizontal position, and remove it from the frame.
Figure 9-38  Removing the CPU memory unit board
Figure 9-38 Removing the CPU memory unit board
  1. Remove the sheet (A in Figure 9-39).
    You can expand the CPU memory unit upper by performing the above procedure. You do not have to perform step 13.
Figure 9-39  Removing the sheet
Figure 9-39 Removing the sheet
  1. Remove the three PCIe cables.
    The direction in which the PCIe cables are removed varies depending on the type of the CPU memory unit.
Caution - Do not attempt to remove a PCIe cable in the wrong direction. If excessive force is used to remove a PCIe cable, it may be damaged.
  1. - The connectors for the three PCIe cables facing the outside of the CPU memory unit
Figure 9-40  Removing the PCIe cables (with the connectors for the three PCIe cables facing the outside of the CPU memory unit)
Figure 9-40 Removing the PCIe cables (with the connectors for the three PCIe cables facing the outside of the CPU memory unit)
- The connector for one PCIe cable facing the outside of the CPU memory unit and the other two facing the front of the CPU memory unit
Figure 9-41  Removing the PCIe cables (with the connector for one PCIe cable facing the outside and the other two facing the front of the CPU memory unit)
Figure 9-41 Removing the PCIe cables (with the connector for one PCIe cable facing the outside and the other two facing the front of the CPU memory unit)
  1. Install the PCIe cables on the PCIBP board.
    Connect the three PCIe cables by matching the PCIe cable position labels with the corresponding position marks on the PCIBP board (A in Figure 9-42 and Figure 9-43).
    The direction in which the PCIe cables are installed varies depending on the type of the CPU memory unit.
Caution - Do not attempt to install a PCIe cable in the wrong direction. If excessive force is used to install a PCIe cable, it may be damaged.
Note - Ensure that the PCIe cables are firmly connected and secure.
  1. - The connectors for the three PCIe cables facing the outside of the CPU memory unit
Figure 9-42  Installing the PCIe cables (with the connectors for the three PCIe cables facing the outside of the CPU memory unit)
Figure 9-42 Installing the PCIe cables (with the connectors for the three PCIe cables facing the outside of the CPU memory unit)
  1. - The connector for one PCIe cable facing the outside of the CPU memory unit and the other two facing the front of the CPU memory unit
Figure 9-43  Installing the PCIe cables (with the connector for one PCIe cable facing the outside and the two facing the front of the CPU memory unit)
Figure 9-43 Installing the PCIe cables (with the connector for one PCIe cable facing the outside and the two facing the front of the CPU memory unit)
  1. Install the sheet (A in Figure 9-44).
Figure 9-44  Installing sheet
Figure 9-44 Installing sheet
  1. Install the CPU memory unit board and secure it to the frame with screws.
    Hold the connector unit at the center of the CPU memory unit board and install it on the frame in the horizontal position.
    For how to hold the CPU memory unit board, see Figure 9-45 and Figure 9-46.
Caution - Do not tilt the CPU memory unit board when installing it. The board may be damaged by hitting the back side of the board against a protruding part or the frame guide.
Figure 9-45  Correct position of the CPU memory unit board
Figure 9-45 Correct position of the CPU memory unit board
Figure 9-46  Wrong position of the CPU memory unit board
Figure 9-46 Wrong position of the CPU memory unit board
  1. - For the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit
    Install the board so that the bent tip of the frame (C in Figure 9-47) can be inserted into the space (B in Figure 9-47) between the end face on the far side of the CPU memory unit board and the radiator (A in Figure 9-47).
  1. a. Insert the board carefully into the frame, keeping it horizontal.

    b. If the threaded hole of the board and the threaded hole of the frame (D in Figure 9-47) do not match when you are inserting the board, place the board by adjusting the position of the board so that the outer circumference of the threaded hole of the frame is visible (E in Figure 9-47).

    c. Attach the connector by pressing down the connector units (F and G in Figure 9-47) at the center on the right and left sides of the board at the same time.
Figure 9-47  Installing the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
Figure 9-47 Installing the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit
    Install the CPU memory unit board, with the left and right guides (A and B in Figure 9-48) and the left guide on the board (C in Figure 9-48) as guides.
  1. a. Insert the board carefully into the frame, keeping it horizontal.

    b. Attach the connector by pressing down the connector units (D and E in Figure 9-48) at the center on the right and left sides of the board at the same time.
Figure 9-48  Installing the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit)
Figure 9-48 Installing the CPU memory unit board (for the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit)
  1. Secure the CPU memory unit board with screws.
    - For the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit
    Secure the CPU memory unit board with four screws and the center part of the radiator on the front with one black screw.

    - For the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit
    Secure the CPU memory unit board with six screws.
  1. Install the XSCF mount and secure it with screws.
    - For the SPARC M10-4/SPARC M10-4S with a FRAME-A CPU memory unit
    Insert the left side (A in Figure 9-49) of the XSCF mount into the opening (B in Figure 9-49) in the frame of the CPU memory unit lower. Next, insert the two guides (C in Figure 9-49) on the right side of the mount into the openings (D in Figure 9-49) in the frame. Then, install the XSCF mount by sliding it to the front (E in Figure 9-49) and securing it with one screw.
Note - After sliding the XSCF mount to the front, confirm that the mount at part F in Figure 9-49 engages the frame guide.
Figure 9-49  Installing the XSCF mount (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
Figure 9-49 Installing the XSCF mount (for the SPARC M10-4/M10-4S with a FRAME-A CPU memory unit)
  1. - For the SPARC M10-4 with a FRAME-B CPU memory unit
    Insert the left protruding part (A in Figure 9-50) of the XSCF mount diagonally from above (C in Figure 9-50) into the opening (B in Figure 9-50) in the frame of the CPU memory unit lower. Next, insert the right protruding part (D in Figure 9-50) of the mount from above (F in Figure 9-50) into the opening (E in Figure 9-50) in the frame. Then, slide the XSCF mount to the front (G in Figure 9-50), and secure it with one screw (H in Figure 9-50).
Figure 9-50  Installing the XSCF mount (for the SPARC M10-4 with a FRAME-B CPU memory unit)
Figure 9-50 Installing the XSCF mount (for the SPARC M10-4 with a FRAME-B CPU memory unit)
  1. - For the SPARC M10-4S with a FRAME-B CPU memory unit
    Insert the left protruding part (A in Figure 9-51) of the XSCF mount from above into the opening (B in Figure 9-51) in the frame of the CPU memory unit lower. Then, secure it with two screws (C in Figure 9-51).
Figure 9-51  Installing the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
Figure 9-51 Installing the XSCF mount (for the SPARC M10-4S with a FRAME-B CPU memory unit)
  1. Install the XSCF board.
    - For the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit
    Insert the XSCF board into guides at two locations (A in Figure 9-52) on the mount (B in Figure 9-52), and push the right lever of the mount by about 5 mm (0.2 in.) to the right (C in Figure 9-52) to attach (E in Figure 9-52) the connector unit (D in Figure 9-52). Then, secure it with one screw (F in Figure 9-52).
Figure 9-52  Installing the XSCF board (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-52 Installing the XSCF board (for the SPARC M10-4 with a FRAME-A/FRAME-B CPU memory unit)
  1. - For the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit
    Insert the XSCF board into the left guide (A in Figure 9-53), and press down the right connector unit (B in Figure 9-53) to attach the connector. Then, secure it with two screws.
Figure 9-53  Installing the XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
Figure 9-53 Installing the XSCF board (for the SPARC M10-4S with a FRAME-A/FRAME-B CPU memory unit)
  1. Attach the rear cover with two screws from the upper part of the rear of the CPU memory unit lower.
Figure 9-54  Screws for rear cover
Figure 9-54 Screws for rear cover
  1. Install the eight screws on both sides of the XSCF cable connection ports on the rear of the CPU memory unit lower.
    For the SPARC M10-4 with a FRAME-A CPU memory unit and the SPARC M10-4/M10-4S with a FRAME-B CPU memory unit, this step is not necessary.
Figure 9-55  Screws for both ends of the XSCF cable connection ports (for the SPARC M10-4S with a FRAME-A CPU memory unit)
Figure 9-55 Screws for both ends of the XSCF cable connection ports (for the SPARC M10-4S with a FRAME-A CPU memory unit)

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