Intel Vig390s - Manual (Page 29)

Vig390s Motherboard Manual V1.0 28
Hardware Support
CAUTION!
Ensure that the power supply provides adequate +5 V standby current if LAN wake
capabilities and Instantly Available PC technology features are used. Failure to do so
can damage the power supply. The total amount of standby current required
depends on the wake devices supported and manufacturing options.
The VIG390S motherboard provides several power management hardware features,
including:
• Power connector
• Fan connectors
• LAN wake capabilities
• Instantly Available PC technology
• Resume on Ring
• Wake from USB
• Wake from PS/2 keyboard
• PME# signal wake-up support
LAN wake capabilities and Instantly Available PC technology require power from the
+5 V standby line. The sections discussing these features describe the incremental
standby power requirements for each.
Resume on Ring enables telephony devices to access the computer when it is in a
power-managed state. The method used depends on the type of telephony device
(external or internal).
Note: The use of Resume on Ring and Wake from USB technologies from an ACPI
state requires an operating system that provides full ACPI support.
Power Connector
SSI ATX 12V compliant power supplies can turn off the system power through
system control. When an ACPI-enabled system receives the correct command, the
power supply removes all non-standby voltages.
When resuming from an AC power failure, the computer returns to the power state it
was in before power was interrupted (on or off). The computer’s response can be set
using the Last Power State feature in the BIOS Setup program’s Boot menu.