Supermicro X8DTU User Manual page 76

Chapter 4: AMI BIOS
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.
PS2 KB/MS Wakeup
Select Enabled to "wakeup" the system when you press the PS2 Keyboard or
Mouse. The options are Enabled and Disabled.
ACPI Aware O/S
Select Yes to enable ACPI support for an operating system that supports ACPI.
Select No to disable ACPI support for an OS that does not support ACPI. The op-
tions are Yes and No.
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 or
mouse attached The options are Enabled and Disabled.
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/.
IPMI Confi guration (X8DTU-F Only)
Intelligent Platform Management Interface (IPMI) is a set of common interfaces that
IT administrators can use to monitor system health and to manage the system as a
whole. For more information on the IPMI specifi cations, please visit Intel's website
at www.intel.com.
IPMI Firmware Version
This item displays the current IPMI Firmware Version.
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