VIA Technologies P4XB-S User Manual page 59

Power Management Option
This item is used to select the degree (or type) of power saving and is related
to these modes: Suspend Mode and HDD Power Down. There are three op-
tions for power management:
Min Saving Minimum Power Management. Suspend Mode = 1 Hour,
Max Saving Maximum Power Management. Suspend Mode = 1 Min,
User Define Allows end users to configure each mode separately.
HDD Power Down
If HDD activity is not detected for the length of time specified in this field, the
hard disk drive will be powered down while all other devices remain active.
Settings are Disable and 1 through 15 Min.
Doze Mode
After the selected period of system inactivity, the CPU clock runs at slower
speed while all other devices still operate at full speed. Settings are Disable, 1
Min, 2 Min, 4 Min, 6 Min, 8 Min, 10 Min, 20 Min, 30 Min, 40 Min and 1 Hour.
Suspend Mode
After the selected period of system inactivity, all devices except the CPU shut
off. Settings are Disabled, 1 Min, 2 Min, 4 Min, 8 Min, 12 Min, 20 Min, 30
Min, 40 Min and 1 Hour.
PM Control by APM
Setting to Yes will activate an Advanced Power Management (APM) device to
enhance Max Saving mode and stop CPU internal clock. Setting options: Yes,
No.
MODEM Use IRQ
Name the interrupt request (IRQ) line assigned to the modem (if any) on your
system. Activity of the selected IRQ always awakens the system. Settings are
3, 4, 5, 7, 9, 10, 11 and NA.
Soft-Off by PWRBTN
This feature allows users to configure the power button function. Settings are:
and HDD Power Down = 15 Min.
and HDD Power Down = 1 Min.
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BIOS Setup