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Dell PowerEdge R750 Installation and Service Manual

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Removing the expansion card risers

Prerequisites

  1. Follow the safety guidelines listed in the Safety instructions.
  2. Follow the procedure listed in the Before working inside your system.
  3. Remove the air shroud or remove the GPU air shroud.
  4. NOTE:If the BOSS S2 module is installed, ensure to disconnect the BOSS S2 power cable and Signal cable before removing the Riser 1 cage.
    Figure 1. BOSS S2 module with power cables
    Removing the BOSS power cable and BOSS signal cable from the BOSS S2 controller card module
  5. If applicable, disconnect the cables from the expansion card or system board.

Steps

  1. Loosen the captive screws on the riser.
  2. Press the blue release tab or blue button on the riser and holding the edges lift the expansion card riser from the riser connector on the system board.
    NOTE:The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
    Figure 2. Removing the expansion card riser (Riser 1)
    This image shows Removing the expansion card riser (Riser 1).
    Figure 3. Removing the expansion card riser (Riser 3)
    This image shows Removing the expansion card riser (Riser 3).
    Figure 4. Removing the expansion card riser (Riser 2)
    This image shows Removing the expansion card riser (Riser 2).
    Figure 5. Removing the expansion card riser (Riser 4)
    This image shows Removing the expansion card riser (Riser 4).
  3. If the risers are not going to be replaced, install riser blanks and if required tighten the captive screws.
    NOTE:You must install a filler bracket over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
    Figure 6. Installing the Riser 1 blank
    This image shows Installing the Riser 1 blank
    Figure 7. Installing the Riser 2 blank
    This image shows Installing the Riser 2 blank
    Figure 8. Installing the Riser 3 blank
    This image shows Installing the Riser 3 blank
    Figure 9. Installing the Riser 4 blank
    This image shows Installing the Riser 4 blank

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