IBM Motherboard User Manual page 34

Chapter 3: BIOS Setup Utility
ACPI function
Use this item toenable ACPI (Advanced Configuration and Power Management
Interface) function.
ACPI Enhanced Efficiency
This item allows you to enable or disable ACPI Enhanced Efficiency function.
HDD Power Down
The IDE hard drive will spin down if it is not accessed within a specified length
of time.
Suspend Mode
The CPU clock will be stopped and the video signal will be suspended if no
Power Management events occur for a specified length of time. Full power func-
tion will return when a Power Management events is detected.
Video Off Option
This item defines if the video is powered down when the system is put into
suspend mode.
Video Off Method
This item defines how the video is powered down to save power. This item is set
to DPMS (Display Power Management Software) by default.
MODEM Use IRQ
If you want an incoming call on a modem to automatically resume the system from
a power saving mode, use this item to specify the interrupt request line (IRQ) that
is used by the modem. You might have to connect the fax/modem to the motherboard
Wake On Modem.
Soft-Off by PWRBTN
Under ACPI (Advanced Configuration and Power management Interface) you can
create a software power down. In a software power down, the system can be
resumed by Wake Up Alarms. This item lets you install a software power down
that is controlled by the power button on your system. If the item is set to
Instant-Off, then the power button causes a software power down. If the item is
set to Delay 4 Sec. then you have to hold the power button down for four seconds
to cause a software power down.
Run VGABIOS if S3 Resume
Use this item to initialize the VGA BIOS from S3 (suspend to RAM) sleep state.
Power on After Power Fail
This item enables your computer to automatically restart or return to its last
operating status.
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