Which BIOS settings are necessary for CPU scaling on Ciara Discovery/Enterprise P7Q57 ?

Issue

• CPU Scaling does not work properly on Ciara Discovery/Enterprise P7Q57 with default BIOS settings.

Environment

• Red Hat Enterprise Linux 5.5
• Ciara Discovery P7Q57 or Ciara Enterprise P7Q57

Resolution

• Set the CPU State option to C6 in the BIOS configuration menus.