Via VB8001-16 User Manual - Page 50

BIOS Setup Set the idle time before system enters power saving mode. ACPI OS such as Windows XP will override this option. Settings: Disable and 1/ 2/4/6/8/10/20/30/40 min and 1 hr. ACPI Suspend Type Set the power saving mode for ACPI function. Settings are: S1/POS - S1/Power On Suspend (POS) is a low power state. In this state, no system context (CPU or chipset) is lost and hardware maintains all system context. S3/STR - S3/Suspend To RAM (STR) is a power-down state. In this state, power is supplied only to essential components such as main memory and wakeup-capable devices. The system context is saved to main memory, and context is restored from the memory when a "wakeup" event occurs. S1 & S3 - Depends on OS to select S1 or S3. PM Control by APM Set if you want the power management function to be controlled by APM. Settings: Yes and No. Video Off Option Select whether or not to turn off the screen when system enters power saving mode, ACPI OS such as Windows XP will override this option. Settings are: Always On - The screen is always on even when system enters power saving mode. Suspend -> Off - The screen is turned off when system enters power saving mode. Power Off by PWRBTN This field configures the power button function. Settings are: Delay 4 Sec - The system is turned off if power button is pressed for more than four seconds. Instant-Off - The power button functions as a normal power-on/-off button. AC Loss Auto Restart If there happens to be AC power loss when your system is running, this item allows you to choose the power state when the AC power is back. The option keeps system in Off state until you press the power button. Settings: Disable and Enable. 3-17