1. Exadata Server X11M Service Manual
  2. Servicing PCIe Cards
  3. Configure PCIe Electrical Interfaces Using the PCIe Flyover Cable

Configure PCIe Electrical Interfaces Using the PCIe Flyover Cable

Using the PCIe Flyover cable, server PCIe slots 6 and 7 can be configured to support either a PCIe x16 (slot 6) or PCIe x8 (slot 7) electrical interface. PCIe slot 6 supports a PCIe x8 electrical interface and PCIe slot 7 is non-functional when the PCIe Flyover PCIe cable is not installed in the server. Installing the cable in slot 6 configures the slot as a PCIe x16 electrical interface. Installing the cable in slot 7 configures the slot as a PCIe x8 electrical interface.

Note:

The PCIe Flyover cable is factory installed in either PCIe slot 6 or slot 7. You must switch the cable to the desired PCIe slot prior to installing a PCIe card or PCIe Riser 6.
  1. Determine where you want to install the PCIe card or Riser.

    See Rules For Configuring PCIe Slots 6 and 7.

    Rules For Configuring PCIe Slots 6 and 7

    • If you are installing an x16 PCIe card in slot 6, you must install the PCIe Flyover cable in to slot 6 to enable support for a PCIe x16 electrical interface; otherwise, slot 6 supports only a PCIe x8 electrical interface.

    • If you are installing a PCIe card in slot 7, you must install the PCIe Flyover cable in slot 7 to support a PCIe x8 electrical interface; otherwise, PCIe slot 7 is non-functional.

    • If you are installing Riser 6 and it contains a PCIe x16 card, you must install the PCIe Flyover cable in to slot 6 to enable a PCIe x16 electrical interface for the Riser; otherwise, slot 6 supports only a PCIe x8 electrical interface.

  2. Perform one of the following.

    • Connect the PCIe Flyover cable between the motherboard connector and PCIe slot 6.

    • Connect the PCIe Flyover cable between the motherboard connector and PCIe slot 7.

  3. Press and hold the button on the connector to disengage the locking mechanism, then gently pull the connector from the motherboard [1].
    Figure showing the PCIe Flyover cable being installed in PCIe slot 6.
    Callout Description

    1

    PCIe Flyover cable

    2

    PCIe slot 7 electrical interface connector

    3

    PCIe slot 6 electrical interface connector
  4. Install the connector in the desired slot and press down on the connector until it is fully seated in the slot [2].
  5. Continue by installing the PCIe card or Riser 6.