Intel S875WP1LX Specification page 38

Functional Architecture
3.6.2 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 Server Board S875WP1-E provides power management hardware features, including:
17 Power connector
18 Fan connectors
19 LAN wake capabilities
20 Instantly Available PC technology
21 Wake from USB
22 Wake from PS/2 keyboard
•
PME# 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.
3.6.2.1 Power Connector
ATX12V or EPS12V compliant power supplies and the Intel Server Board S875WP1-E can turn
off the system power through software control. When the system receives the correct command
from the operating system, the power supply removes non-standby voltages from the system.
When 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 in the
BIOS Setup program's Boot menu.
For information about
The location of the power connectors
The signal names of the power connector
The BIOS Setup program's Boot menu
26
S875WP1-E TPS
Refer to
Figure 1
Section 5.1
Section 7.1.5
Revision 4.0