Foxconn H55A - Manual (Page 45)

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► HPeT
HPET stands for High Precision Even Timer. If you have the HPET disabled, then windows
does not have access to it and therefore falls back to less accurate timing methods. This item
is used to enable or disable the HPET Support.
► ACPI Suspend Type
This item is used to set the energy saving mode of the ACPI function. When you select “S1
(POS)” mode, the power is always on and computer can be resumed at any time. When
you select “S3 (STR)” mode, the power will be down after a period of time. The status of the
computer before it entering STR will be saved in memory, and the computer can quickly return
to previous state when the STR function wakes.
When you select “Auto”, it means OS will automatically take care and assign which mode is
the most suitable now.
► Energy-using Products
This item is used to enable/disable the EuP(Energy-using Products) feature. When enable, the
suspend power of the chipset will be cut off in S5 suspend mode in order to reduce the power
consumption of motherboard.
Enable: S1/S3/S4 is normal, S5 wake up only by pressing the power button.
Disable: Normal ACPI function.
► USB Device Wakeup From S3
This item is used to wake up the system by a USB device when it is staying at S3 state.
► Resume by PCIE PME
This item is used to enable/disable the PCI Express device to generate a wake up.
► Resume by PCI Card
This item is used to enable/disable the PCI card to generate a wake up.
► Resume by PS2 Keyboard
This item is used to enable/disable the PS2 keyboard to generate a wake up.
► Resume by PS2 Mouse
This item is used to enable/disable the PS2 mouse to generate a wake up.
► Resume by RTC
This item is used to enable/disable RTC alarm event to generate a wake up.
RTC is system real time clock.