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ing data when the receiving buffer is full. Send a "Start" signal to start sending
data when the receiving buffer is empty. The options are None, Hardware RTS/
CTS, and Software Xon/Xoff.
Data Bits, Parity, Stop Bits
The status of these features is displayed.
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 the sleep mode.
Select S1 (CPU_Stop_Clock) to erase all CPU caches and stop executing instruc-
tions. Power to the CPU(s) and RAM is maintained, but RAM is refreshed. Select
Suspend to use the 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 de-
pendency on other timestamp calculation devices, such as an x86 RDTSC Instruc-
tion embedded in the CPU. The High Performance Event Timer is used to replace
the 8254 Programmable Interval Timer. The options are Enabled and Disabled.
Trusted Computing (Available when a TPM device is detected
by the BIOS)
Configuration
TPM Support
Select Enabled on this item and enable the TPM jumper on the motherboard to
enable TPM support to improve data integrity and network security. The options
are Enabled and Disabled.
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Chapter 4: AMI BIOS
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