Supermicro X10DRT-L User Manual page 79

CPU P State Control (Available when Power Technology

is set to Custom)
EIST (P-states)
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 Disable and Enable.
Turbo Mode
Select Enabled to use the Turbo Mode to boost system performance. The options
are Enable and Disable.
P-state Coordination
This feature is used to change the P-state (Power-Performance State) coordination
type. P-state is also known as "SpeedStep" for Intel processors. Select 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 (Available when Power Technology

is set to Custom)
Package C State limit
Use this item to set the limit on the C-State package register. The options are C0/1
state, C2 state, C6 (non-Retention) state, and C6 (Retention) state.
CPU C3 Report
Select Enable to allow the BIOS to report the CPU C3 State (ACPI C2) to the op-
erating system. During the CPU C3 State, the CPU clock generator is turned off.
The options are Enable and Disable.
CPU C6 Report (Available when Power Technology is set to Custom)
Select Enable to allow the BIOS to report the CPU C6 state (ACPI C3) to the
operating system. During the CPU C6 state, power to all cache is turned off. The
options are Enable and Disable.
Enhanced Halt State (C1E)
Select Enabled to use Enhanced Halt-State technology, which will significantly re-
duce the CPU's power consumption by reducing the CPU's clock cycle and voltage
during a Halt-state. The options are Disable and Enable.
4-9
Chapter 4: AMI BIOS