Supermicro Supero X9SPU-F, User Manual

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Chapter 4: AMI BIOS
4-7
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.