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5. BIOS Setup
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DS-280H Series User’s Manual
Power Management Setup
Table 5.13. Power Management Setup
Phoenix – Award WorkstationBIOS CMOS Setup Utility
Power Management Setup
Item Help
ACPI function
[Enabled]
ACPI Suspend Type
[S1(POS)]
C2 Disable/Enable
[Disabled]
Power Management Option
[User Define]
HDD Power Down
[Disabled]
Video Off Option
[Suspend -> Off]
Video Off Method
[V/H SYNC+Blank]
Soft-Off by PWRBTN
[Instant-Off]
PowerOn by PCIE Card
[Disabled]
ACPI XSDT Table
[Enabled]
HPET Support
[Enabled]
RTC Alarm Resume
[Disabled]
x Date (of Month)
0
x Resume Time (hh:mm:ss)
0 : 0 : 0
↑↓←→
: Move Enter : /-/PU/PD : Value F10 : Save ESC : Exit F1:General Help
F5 : Previous Values F6 : Fail-Safe Defaults F7 : Optimized Defaults
Item
Explanation
ACPI Suspend Type
The default setting of the ACPI Suspend mode is S1(POS).
C2 Disable/Enable
The default setting of this field is Disabled.
Power Management Option
This field allows you to select the type of power saving management modes. There are
four selections for Power Management.
Min. Power Saving: Minimum power management
Max. Power Saving: Maximum power management.
User Define: Each of the ranges is from 1 min. to 1hr. Except for
HDD Power Down which ranges from 1 min. to 15 min.
HDD Power Down
When enabled, and after the set time of system inactivity, the hard disk drive will be
powered down while all other devices remain active.
Video Off Option
This field sets the video off option. By default, video goes into suspend state and then Off.
Video Off Method
This field defines the Video Off features. There are three options.
V/H SYNC + Blank: Default setting, blank the screen and turn off vertical and horizontal
scanning.
DPMS: Allows BIOS to control the video display.
Blank Screen: Writes blanks to the video buffer.
Soft-Off by PWRBTN
This field defines the power-off mode when using an ATX power supply. The Instant
Off mode allows powering off immediately upon pressing the power button. In the By
Hardware mode, the system powers off when the power button is pressed for more than
four seconds or enters the suspend mode when pressed for less than 4 seconds.
HPET Support
HPET, or High Precision Event Timer (formerly known as Multimedia Timer) is a
hardware timer that is supported under Linux and Windows Vista. It can produce
periodic interrupts at a much higher resolution than the RTC and is often used to
synchronize multimedia streams, providing smooth playback and reducing the need to use
other timestamp calculations such as an x86 CPU’s RDTSC instruction.