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Wake from USB
USB bus activity wakes the computer from an ACPI S1 or S3 state.
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
Wake from PS/2 Devices
PS/2 device activity, such as moving a PS/2 mouse or pressing a key on a PS/2 keyboard, wakes the
computer from an ACPI S1 or S3 state.
Hardware Support
The S875WP1-E server board provides several power management hardware features, including:
•
Power connector
•
Fan connectors
•
Instantly Available PC technology
Instantly Available PC technology and LAN Wake require power from the +5V standby line. The
sections discussing these features describe the incremental standby power requirements.
CAUTION
Ensure that the power supply provides adequate +5V standby current if Instantly Available PC
technology features is 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.
Power Connector
When used with an ATX12V or EPS12V compliant power supply that supports remote power on/off,
the S875WP1-E server board can turn off the system power through software control. When the
system BIOS receives the correct command from the operating system, the BIOS turns off power
to the computer.
With soft-off enabled, if power to the computer is interrupted by a power outage or a disconnected
power cord, when power resumes, 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 After Power Failure feature
in the BIOS Setup program's Boot menu.
NOTE
A standard ATX 20 pin power connector and standard ATX 12V 4-pin 2x2 connector can be used to
power the S875WP1-E board. Plug the power cables into the pin 1 end of their respective motherboard
connectors, leaving pins 21-24 unused on the main power connector and 5-8 unused on the 12V
connector.
MAXDATA PLATINUM 220 Server
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