X9DR3_i-LN4F+ 1.1.indb - Supermicro

Chapter 4: AMI BIOS
TPM Owner Status
This item displays the status of TPM Ownership.
ACPI Setting
Use this feature to configure Advanced Configuration and Power Interface (ACPI)
power management settings for your system.
ACPI Sleep State
Use this feature to select the ACPI State when the system is in sleep mode. Select
S1 (CPU_Stop_Clock) to erase all CPU caches and stop executing instructions.
Power to the CPU(s) and RAM is maintained, but RAM is refreshed. Select Suspend
to use power-reduced mode. Power will only be supplied to limited components
(such as RAMs) to maintain the most critical functions of the system. The options
are S1 (CPU_Stop_Clock), Suspend and Disabled.
NUMA (NON-Uniform Memory Access)
This feature enables the Non-Uniform Memory Access ACPI support. The options
are Enabled and Disabled.
High Precision Event Timer
Select Enabled to activate the High Precision Event Timer (HPET) that produces
periodic interrupts at a much higher frequency than a Real-time Clock (RTC) does
in synchronizing multimedia streams, providing smooth playback, reducing the dependency
on other timestamp calculation devices, such as an x86 RDTSC Instruction
embedded in the CPU. The High Performance Event Timer is used to replace
the 8254 Programmable Interval Timer. The options are Enabled and Disabled.
Intel ME Subsystem Configuration
This feature displays the following ME Subsystem Configuration settings.
• ME BIOS Interface Version
• ME Version
4-23