SUPER MICRO Computer C2SBE ACPI Sleep Mode, High Precision Event Time, Power Button Behavior

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

ACPI Sleep Mode

This setting allows you to configure the ACPI (Advanced Configuration 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-Offand 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-JKB is enabled by closing pin 1 and pin 2. Please refer to Chapter 2.)

USB Wake Up

This feature is used to awaken the system from Standby mode by a Universal Se- rial Bus (USB) device (such as, a USB mouse or USB keyboard). 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 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.

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