Asus P4S8X-X - Manual (Page 56)

2-24 Chapter 2: BIOS information
2.5.1 Power Up Control
HDD Power Down [Disabled]
Shuts down any IDE hard disk drives in the system after a period of inactivity as
set in this user-configurable field. This feature does not affect SCSI hard drives.
Configuration options: [Disabled] [1 Min] [2 Min] [3 Min]...[15 Min]
ACPI Suspend To RAM [Disabled]
This field allows you to enable or disable the ACPI Suspend-to-RAM feature. To
support this feature, the +5VSB of the power supply should have the capacity to
provide more than 720mA current. Configuration options: [Disabled] [Enabled]
Suspend Mode [Disabled]
Sets the time period before the system goes into suspend mode. Configuration
options: [Disabled] [1~2 Min] [2~3 Min] [4~5 min] [8~9 Min] [20 Min] [30 Min]
PWR Button < 4 Secs [Soft Off]
When set to [Soft off], the ATX switch can be used as a normal system power-off
button when pressed for less than 4 seconds. [Suspend] allows the button to have
a dual function where pressing less than 4 seconds puts the system in sleep mode.
Regardless of the setting, holding the ATX switch for more than 4 seconds powers
off the system. Configuration options: [Soft off] [Suspend]
AC PWR Loss Restart [Disabled]
This allows you to set whether or not to reboot the system after power
interruptions. [Disabled] leaves your system off while [Enabled] reboots the
system. [Previous State] sets the system back to the state it was before the power
interruption. Configuration options: [Disabled] [Enabled] [Previous State]