Datasheet

4-8

C2SBA+II/C2SBA+/C2SBA/C2SBE User's Manual

ACPI Sleep Mode

This setting allows you to conﬁ gure the ACPI (Advanced Conﬁ guration and Power

Interface) Sleep Mode for your system. The options are S1, S3 and S1S3.

High Precision Event Time

Select Yes to activate the High Precision Event Timer (HPET) that produce

periodic interrupts at a much higher frequency than a Real-time Clock (RTC) can

in synchronizing multimedia streams, providing smooth playback and reducing

the dependency on other timestamp calculation devices, such as an x86 RDTSC

Instruction embedded in a CPU. The High Precision Event Timer is used to

replace the 8254 Programmable Interval Timer. The default setting is No.

Power Button Behavior

If set to Instant-Off, the system will power on or power off the system immediately

as soon as the user hits the power button. The options are Instant-Off and

4-second Override.

Resume On Modem Ring

Select On to “wake your system up” when an incoming call is received by your

modem. The options are On and Off.

Resume On PME#

Select On to “wake your system up” from the PME#. The options are On and

Off.

PS2 Keyboard (KB)/Mouse Wake Up

Select Enable to “wake your system up” from S3, S4 or S5 state. The options

are Enabled and Disabled. (This feature is available when the jumper-JPWAKE

is enabled by closing pin 1 and pin 2. Please refer to Chapter 2.)

Power Loss Control

This setting allows you to decide how the system will react when power returns

after an unexpected loss of power. The options are Stay Off, Power On, and

Last State.

Legacy USB Support

Select Enabled to enable Legacy USB Support. The options are Enabled and

Disabled.

Watch Dog

Select Enabled to automatically reset the system if the system is not active for

more than 4 minutes. The options are Enabled and Disabled.

Summary Screen

This setting allows you to Enable or Disable the summary screen which displays

the system conﬁ guration during bootup.