User`s guide
Chapter 7: BIOS
7-19
Fan1 ~ Fan 4 Reading
This feature displays the fan speed readings from fan interfaces Fan1 through
Fan5.
Voltage Readings
The following items will be monitored and displayed:
CPU1 Vcore, CPU2 Vcore, +5Vin, +12Vcc (V), VP1 DIMM, VP2 DIMM, 3.3Vcc
(V), and Battery Voltage
ACPI Conguration
Use this feature to congure Advanced Conguration and Power Interface
(ACPI) power management settings for your system.
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 Sys-
tem 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.
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 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.