WinSystems SBC35-427, Дополнительное руководство по биосу

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SBC35-427/BIOS Settings
v1.0 www.winsystems.com Page 11
4.3.2 Chipset Configuration
Set configuration options that are not CPU-specific.
CPU Power
Management
Provides settings related to CPU power management such as Intel
SpeedStep, Turbo Mode, and C-States.
• EIST Enhanced Intel SpeedStep allows the CPU to
save power by dynamically changing the
processor clock frequencies. It calculates the
exact frequency needed at any moment by
raising or lowering the clock multiplier and
also adjusts the CPU voltage.
Enable,
Disable
Enable
• Turbo Mode Raises the clock frequency of processor to a
manufacturer-defined turbo speed. System
load, active cores, estimated current, power
consumption, and core temperature are
taken into account in the boosting process.
Enable,
Disable
Enable
• Boot Perfor-
mance Mode
Selects the performance state that the BIOS
sets before OS handoff.
Max
Performance,
Max Battery
Max
Performance
• C-States Enables/disables the use of C-States, which
are the “states” that the processor comes to
in order to lower power consumption and
temperature.
Enable,
Disable
Enable
• Enhanced C-
States
Enables/disables the use of enhanced C-
States. C1 state is when the CPU is idle, but
can instantly revert to its working state. C1E
(C1 Enhanced) is the updated modern
version of same state.
Enable,
Disable
Enable
• Max Package C-
State
Controls the Max Package C-State that the
processor supports.
PC2, PC1, CO PC2
• Max Core C-
State
Limits the depth of the C-States in the HALT
state.
Fused Value,
Core C10,
Core C9,
Core C8,
Core C7,
Core C6,
Core C1,
Unlimited
Fused Value
Feature Description Choices Default
Feature Description Choices Default
Max Tolud Sets the maximum Top of Low Usable DRAM
(TOLUD) value, which specifies the memory space to
be used by internal graphics devices, GTT Stolen
Memory, and TSEG, respectively, if these devices are
enabled.
2 GB,
2.25 GB,
2.5 GB,
2.75 GB,
3 GB
2 GB
Above 4GB
MMIO BIOS
assignment
Enables/disables memory mapped I/O for a 64-bit
PCIe device to 4 GB or greater address space.
Enable,
Disable
Disable
8254 Clock
Gating
Enables/disables the legacy 8254 timer and saves
power. Some operating systems do not boot if this
is enabled.
Enable,
Disable
Disable
Serial IRQ Enables/disables SERIRQ. Serialized interrupts are
transmitted over a single shared SERIRQ line. From
a software/OS standpoint, these interrupts are no
different than legacy ISA interrupts.
Enable,
Disable
Enable