Supermicro X10QBL-CT User Manual page 79

CPU P State Control
EIST
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically
adjust processor voltage and core frequency to reduce power consumption and
heat dissipation. The options are Disabled, and Enabled.
Turbo Mode (Available when Intel® EIST Technology is enabled)
Select Enabled to use the Turbo Mode to boost system performance. The options
are Enabled and Disabled.
P-State Coordination
This feature allows the user to change the P-State (Power-Performance State)
coordination type. P-State is also known as "SpeedStep" for Intel processors. Se-
lect HW_ALL to change the P-State coordination type for hardware components
only. Select SW_ALL to change the P-State coordination type for all software
installed in the system. Select SW_ANY to change the P-State coordination
type for a software program in the system. The options are HW_All, SW_ALL,
and SW_ANY.
CPU C State Control
C2C3TT
This feature allows the user to set the C2 to C3 Transition timer. The default
setting is 0 (for Auto setting).
Package C-State limit
This feature allows the user to set the limit on the C-State package register.
The options are C0/C1 State, C2 State, C6 (Non Retention) State, and C6
(Rentention) State.
CPU C3 Report
Select Enabled to allow the BIOS to report the CPU C3 State (ACPI C2) to the
operating system. During the CPU C3 State, the CPU clock generator is turned
off. The options are Enable and Disable.
CPU C6 Report
Select Enabled to allow the BIOS to report the CPU C6 State (ACPI C3) to the
operating system. During the CPU C6 State, the power to all cache is turned
off. The options are Enable and Disable.
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Chapter 4: AMI BIOS