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Solaris 10 Installation Guide for IBM BladeCenter Servers

6505757: PCI Express Software Support Not Enabled by Default on Some Newer PCI Express Hardware

Description: Some IBM BladeCenter servers, such as the BladeCenter LS21, LS41, and HS21 servers, do not support Memory-Mapped PCI Configuration Space (MCFG) by default. Solaris PCI Express software does not work on these systems without performing some type of workaround.

Workaround: Before you install the Solaris 10 11/06 OS or a later release, you need to update the system BIOS.

    To update the system BIOS, follow these steps.

  1. Reboot the system.

  2. As the system is rebooting, press F1 to access the system BIOS.

  3. To enable MCFG, select Advanced Setup -> PCI Bus Control -> PCI Enhanced Configuration Access.

  4. Use the Right arrow or Left arrow key to set the PCI Enhanced Configuration Access to Enabled.