Supero X8DTH-6, User Manual

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Chapter 4: AMI BIOS
4-19
CPU1 Vcore, CPU2 Vcore, CPU1 Vtt, CPU2 Vtt, CPU1 DIMM, CPU2 DIMM, 1.1V,
1.5V, 1.8V, 3.3V, 12V, 5V, 3.3 Vsb, and VBAT

ACPI Confi guration
Use this feature to confi gure Advanced Confi guration and Power Interface (ACPI)
power management settings for your system.
ACPI Aware O/S
Select Yes to enable ACPI support if it is supported by the OS to control ACPI
through the Operating System. Otherwise, disable this feature. The options are
Yes and No.
ACPI Version Features
The options are ACPI v1.0, ACPI v2.0 and ACPI v3.0. Please refer to ACPI's website
for further explanation: http://www.acpi.info/.
ACPI APIC Support
Select Enabled to include the ACPI APIC Table Pointer in the RSDT (Root System
Description Table) pointer list. The options are Enabled and Disabled.
APIC ACPI SCI IRQ
When this item is set to Enabled, APIC ACPI SCI IRQ is supported by the system.
The options are Enabled and Disabled .
Headless Mode
This feature is used to enable system to function without a keyboard, monitor and/
or mouse attached The options are Enabled and Disabled .
High Performance Event Timer
Select Enabled to activate the High Performance 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 and 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.
NUMA Support
Select Enabled to enable Non-Uniform Memory Access support for an "NUMA-
Aware" OS to improve CPU performance. Select Disabled to provide better memory
access for an "non-NUMA" OS. Select NUMA for SLES 11 for better CPU perfor-
mance on a SUSE Linux Enterprise Server 11. The options are Enabled, Disabled
and NUMA for SLES11.