SUPER MICRO Computer X9SPU-F user manual Active Processor Cores, Power Technology

Chapter 4: AMI BIOS

Active Processor Cores

Set to Enabled to use a processor's Second Core and beyond. (Please refer to Intel's web site for more information.) The options are All, 1, 2, 3.

Power Technology

This feature determines what power-saving scheme the motherboard uses. The options are Disable, Energy Efficient and Custom. If Custom is selected, the fol- lowing options become available:

EIST

EIST (Enhanced Intel SpeedStep Technology) allows the system to auto- matically adjust processor voltage and core frequency in an effort to reduce power consumption and heat dissipation. Please refer to Intel’s web site for detailed information. The options are Disabled and Enabled.

CPU C3 Report, CPU C6, Report, CPU C7 Report

This BIOS feature enables or disables C3 (ACPI C2), C6 (ACPI C3) and C7 (ACPI C3) reporting to the operating system. The options are Disabled and Enabled.

C1E

Select Enabled to use the "Enhanced Halt State" feature. C1E significantly reduces the CPU's power consumption by reducing the CPU's clock cycle and voltage during a "Halt State." The options are Disabled and Enabled.

Turbo Boost Technology

Turbo Mode

This feature allows processor cores to run faster than marked frequency in specific conditions. The options are Disabled and Enabled.

Long duration power limit - this is the processor power consumption limit (in Watts) during a long duration time window.

Long duration maintained - this is the time in milliseconds where the Long Dura- tion Power Limit is maintained.

Short duration power limit - during Turbo Mode, the system may exceed the processor's default power setting and exceed the Short Duration Power limit. By increasing this value, the processor can provide better performance for a short duration.

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