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Introduction

Overview

This guide demonstrates how to replace the system motherboard in an Open Compute V2 server. == Acronyms and Terms == * CPU - Central Processing Unit * DIMM - Dual In-line Memory Module * SATA - Serial ATA; a type of computer bus interface * SFP+ - Enhanced Small Form-factor Pluggable; a type of hot-plug transceiver

  1. The server can be powered off remotely or on the hardware itself.
    • The server can be powered off remotely or on the hardware itself.

    • Remote Power Down: Login to the server to power it off.

    • shutdown -h now;exit

    • Hardware Power Down: Press and hold the power switch for at least three seconds, as annotated.

  2. Press the button on the server sled release lever and pull the lever. This unlocks the sled from the chassis. This unlocks the sled from the chassis.
    • Press the button on the server sled release lever and pull the lever.

    • This unlocks the sled from the chassis.

  3. Disconnect the 10G SFP+ cable from the network interface controller. Disconnect the SATA / power cables connected to the boot hard disk drive. Node 1 (right-most sled) boot drive is the top drive in the chassis. Node 0 (left-most sled) boot drive is the bottom drive in the chassis.
    • Disconnect the 10G SFP+ cable from the network interface controller.

    • Disconnect the SATA / power cables connected to the boot hard disk drive.

    • Node 1 (right-most sled) boot drive is the top drive in the chassis. Node 0 (left-most sled) boot drive is the bottom drive in the chassis.

    • Disconnecting the SATA / power cable can be performed on either the motherboard or HDD end of server node 1 . However, the SATA / power cable must be disconnected from the motherboard end on node 0.

  4. Pull the server sled from the chassis.
    • Pull the server sled from the chassis.

  5. Place the server sled on a work surface.
    • Place the server sled on a work surface.

  6. Engage the lid as shown. Push the lid towards the rear of the server. Lift the lid upwards when resistance is felt.
    • Engage the lid as shown.

    • Push the lid towards the rear of the server.

    • Lift the lid upwards when resistance is felt.

  7. Place your fingers underneath the left side of the NIC PCB as shown. Push the NIC up. If the NIC cannot be pushed upwards, it may be necessary to use a tool (such as pliers) to pinch the arrowhead portion of the nylon standoffs.
    • Place your fingers underneath the left side of the NIC PCB as shown.

    • Push the NIC up.

    • If the NIC cannot be pushed upwards, it may be necessary to use a tool (such as pliers) to pinch the arrowhead portion of the nylon standoffs.

    • Push the top right corner up.

  8. Grasp the NIC as shown. Lift the NIC away from the server motherboard.
    • Grasp the NIC as shown.

    • Lift the NIC away from the server motherboard.

    • Place the NIC aside. It will be reinstalled at a later point in the procedure.

  9. Using a cross-torque technique, loosen the Phillips #2 screws in a diagonal pattern to disconnect the CPU heatsinks from the motherboard. Using a cross-torque technique, loosen the Phillips #2 screws in a diagonal pattern to disconnect the CPU heatsinks from the motherboard. Using a cross-torque technique, loosen the Phillips #2 screws in a diagonal pattern to disconnect the CPU heatsinks from the motherboard.
    • Using a cross-torque technique, loosen the Phillips #2 screws in a diagonal pattern to disconnect the CPU heatsinks from the motherboard.

  10. Place the heatsinks to the side of the motherboard
    • Place the heatsinks to the side of the motherboard

    • Placing the heatsinks adjacent to their respective CPU sockets will allow for quick installation later in the procedure.

  11. Release the CPU retention levers from CPU 0. Rotate the CPU 0 retention gate. Rotate the CPU 0 retention gate.
    • Release the CPU retention levers from CPU 0.

    • Rotate the CPU 0 retention gate.

  12. Remove the CPU and place it on top of its adjacent heatsink Ensure that the LGA socket contact pins do not make contact with any surface. Ensure that the LGA socket contact pins do not make contact with any surface.
    • Remove the CPU and place it on top of its adjacent heatsink

    • Ensure that the LGA socket contact pins do not make contact with any surface.

  13. Repeat the process for the CPU in socket 1.
    • Repeat the process for the CPU in socket 1.

  14. Press downwards on the DIMM retention tabs. Remove each DIMM from its respective slot. Make sure the DIMM pins do not contact any surface.
    • Press downwards on the DIMM retention tabs.

    • Remove each DIMM from its respective slot.

    • Make sure the DIMM pins do not contact any surface.

  15. Place the DIMMs on the work surface adjacent to their respective channels.
    • Place the DIMMs on the work surface adjacent to their respective channels.

    • Orientate the DIMMs in a logical manner that coincides with their original motherboard orientation.

  16. Loosen the thumbscrew shown.
    • Loosen the thumbscrew shown.

    • This is the only thumbscrew securing the motherboard to the Open Compute V2 sled.

  17. Push the motherboard towards the rear of the sled until resistance is felt. Push the motherboard towards the rear of the sled until resistance is felt.
    • Push the motherboard towards the rear of the sled until resistance is felt.

  18. Lift the motherboard away from the server sled. Lift the motherboard away from the server sled.
    • Lift the motherboard away from the server sled.

  19. Remove the packaging from the new motherboard. Place the motherboard on the standoffs / guides. Push the motherboard towards the front of the server sled.
    • Remove the packaging from the new motherboard.

    • Place the motherboard on the standoffs / guides.

    • Push the motherboard towards the front of the server sled.

  20. Update your systems configuration to account for the new Motherboard MAC address.
    • Update your systems configuration to account for the new Motherboard MAC address.

  21. Tighten the thumbscrew shown.
    • Tighten the thumbscrew shown.

  22. Align the DIMM pins with its socket key. Press the DIMM down into the slot until the retention tabs spring upward to secure the module.
    • Align the DIMM pins with its socket key.

    • Press the DIMM down into the slot until the retention tabs spring upward to secure the module.

    • Repeat for the remaining DIMM.

  23. Align the CPU with its socket orientation, as shown. An arrow exists on both the CPU module and CPU retention gate. Align these corners. Carefully lower the CPU into its socket.
    • Align the CPU with its socket orientation, as shown.

    • An arrow exists on both the CPU module and CPU retention gate. Align these corners.

    • Carefully lower the CPU into its socket.

    • Close and secure the CPU retention gate.

    • If thermal compound was removed for this application, apply thermal compound to the CPU.

    • Repeat this step for the remaining CPU.

  24. Using a cross-torque technique, tighten the Phillips #2 screws in a diagonal pattern to install the CPU heatsinks onto the motherboard.
    • Using a cross-torque technique, tighten the Phillips #2 screws in a diagonal pattern to install the CPU heatsinks onto the motherboard.

  25. Place the NIC on the four nylon risers.
    • Place the NIC on the four nylon risers.

    • Push the NIC downwards.

    • The risers will make a distinctive 'click' when the card is properly seated.

  26. Install the lid onto the server node. The lid installation process is opposite of its removal process. The lid installation process is opposite of its removal process.
    • Install the lid onto the server node.

    • The lid installation process is opposite of its removal process.

  27. Slide the server back into the rack. Connect the peripheral cables (SATA / power and networking) that were previously disconnected.
    • Slide the server back into the rack.

    • Connect the peripheral cables (SATA / power and networking) that were previously disconnected.

  28. Power on the server.
    • Power on the server.

Conclusion

Dozuki System

Member since: 09/24/2009

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142 Guides authored

2 Comments

you given such a great info about motherboards and cpus ,The motherboard is a computer's central communications backbone connectivity point, through which all components so this very important to understand how its works so thanku guys for sharing this

josephjohn - Reply

such great info thanks for sharing us. if you need a good motherboard please visit here.

jadekelly - Reply

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