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Install a rear riser assembly

Use this information to install a rear riser assembly.

About this task

sharp edge
Sharp edges, corners, or joints nearby.

The server supports different types of riser cages (see Rear PCIe adapter and riser assembly replacement).

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.

  • Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.


  1. Install the riser assembly into chassis.
    • Riser 1 assembly (same for riser 2 assembly)

      The following uses the 3-slot riser cage as an example for illustration. The replacement procedure for the 1-slot riser cage is similar.
      Figure 1. Riser 1 assembly installation
      Riser 1 assembly installation
    1. Align the riser card with the riser slot on the system board assembly. Carefully press the riser card straight into the slot until it is securely seated.
    2. Tighten the screw to secure the riser cage.
    • Riser 3 assembly

      The following uses the Gen 5 riser 3 cage as an example for illustration. The replacement procedure is the same for Gen 4 riser 3 cage.
      Figure 2. Riser 3 assembly installation
      Riser 3 assembly installation
    • 4LP Riser 3/4 assembly

      1. Install the riser cage tray.

        Figure 3. Riser cage tray installation
        Riser cage tray installation
        1. Align the riser cage tray with the pin and screw holes on the chassis.

        2. Install the screws to fix the riser cage tray to the chassis.

      2. Install riser 3 assembly and riser 4 assembly into the riser cage.

        Figure 4. Riser 3/4 assembly installation
        Riser 3/4 assembly installation
  2. Connect cables to the riser card and PCIe adapter. See Internal cable routing.

After you finish

Complete the parts replacement. See Complete the parts replacement.

Demo video

Watch the procedure on YouTube