Configuring specific PCIe devices

Use the PCIe Device Configuration options to enable or disable, and select configuration settings for embedded and added-in PCI devices. Disabling devices reallocates the resources (memory, I/O, and ROM space and power) that are normally allocated to the device. By default, all devices are enabled.
Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > PCIe Device Configuration.
  2. Select a device from the list.
  3. Select settings. Depending on the device, options include:
    • Device Disable
      • Auto—The device is automatically enabled at server boot.
      • Disabled—The device is not automatically enabled.

    • PCIe Link Speed

      • Auto—Sets the link speed to the maximum supported speed of the PCIe link.

      • PCIe Generation 1.0—Sets the link speed to a maximum speed of PCIe Generation 1.0.
      • PCIe Generation 2.0—Sets the link speed to a maximum speed of PCIe Generation 2.0.
      NOTE:

      If this feature is not supported, the option is not available.

    • PCIe Power Management (ASPM)

      • Auto

      • Disabled

      • L1 Enabled—The device's link enters a lower power standby state at the expense of a longer exit latency.

    • PCIe Option ROM

      • Enabled—The platform optimally loads PCIe Option ROMs to save boot time.
      • Disabled—The platform disables all PCIe Option ROM optimizations, which might be required for older PCIe devices.

  4. Save your settings.