DFI SB331-IPM, User Manual

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Introduction
RTC Timer
The RTC installed on the system board allows your system to automatically pow-
er-on on the set date and time.
ACPI STR
The system board is designed to meet the ACPI (Advanced Configuration and
Power Interface) specification. ACPI has energy saving features that enables PCs
to implement Power Management and Plug-and-Play with operating systems that
support OS Direct Power Management. ACPI when enabled in the Power Manage-
ment Setup will allow you to use the Suspend to RAM function.
With the Suspend to RAM function enabled, you can power-off the system at
once by pressing the power button or selecting “Standby” when you shut down
Windows
®
without having to go through the sometimes tiresome process of
closing files, applications and operating system. This is because the system is
capable of storing all programs and data files during the entire operating session
into RAM (Random Access Memory) when it powers-off. The operating session will
resume exactly where you left off the next time you power-on the system.
Important:
The 5V_standby power source of your power supply must support
≥ 720mA.
Power Failure Recovery
When power returns after an AC power failure, you may choose to either power-
on the system manually or let the system power-on automatically.