User`s manual

Chapter 4: BIOS

4-7

High Precision Event Time

Select Yes to activate the High Precision Event Timer (HPET), which is capable of

producing periodic interrupts at a much higher frequency than a Real-time Clock

(RTC) in synchronizing multimedia streams, providing smooth playback and reducing

the dependency on other timestamp calculation devices in a CPU. The HPET 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 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 KB/MS Wake Up

Select Enable to “wake your system up” from the S1 and S3 state via a PS2

keyboard or mouse. The options are Enabled and Disabled.

USB Wake Up

Select Enable to “wake your system up” from the S1 and S3 state via a USB device.

The options are Enabled and Disabled.

Power Loss Control

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

after an unexpected loss of power. The default setting is Last State.

Legacy USB Support

Select Enabled to enable Legacy USB Support. The default setting is Enabled.

Watch Dog

Set to Enabled to automatically reset the system if it is not active for more than a

predeﬁ ned time period. The options are Enabled and Disabled.

Summary Screen

Select Enable to show the summary screen which displays the system conﬁ guration

during bootup.