Intel SE7221BA1 Product Specification - Page 28

Hardware Support, 6.3.1, Power Connector, 6.3.2, Fan Connectors

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Functional Architecture Intel® Entry Server Board SE7221BA1-E TPS 1. Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the system chassis' power supply. 2. Dependent on the standby power consumption of wake-up devices used in the system. 3.6.3 Hardware Support The Intel® Entry Server Board SE7221BA1-E 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 • WAKE# signal wake-up support LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line. 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. 3.6.3.1 Power Connector ATX12V-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 server returns to the power state it was in before power was interrupted (on or off). The server's response can be set using the Last Power State feature in the BIOS Setup program's Boot menu. 3.6.3.2 Fan Connectors The function/operation of the fan connectors is as follows: • The fans are on when the board is in the S0 or S1 state. • The fans are off when the board is off or in the S4 or S5 state. • Each fan connector is wired to a fan tachometer input of the hardware monitoring and fan control ASIC • All fan connectors support closed-loop fan control that can adjust the fan speed or switch the fan on or off as needed. • All fan connectors have a +12 V DC connection 18 Revision 1.5

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Functional Architecture
Intel® Entry Server Board SE7221BA1-E TPS
18
Revision 1.5
1.
Total system power is dependent on the system configuration, including add-in boards and peripherals powered
by the system chassis’ power supply.
2.
Dependent on the standby power consumption of wake-up devices used in the system.
3.6.3
Hardware Support
The Intel® Entry Server Board SE7221BA1-E 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
•
WAKE# signal wake-up support
LAN wake capabilities and Instantly Available PC technology require power from the +5 V
standby line.
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.
3.6.3.1
Power Connector
ATX12V-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 server returns to the power state it was in before
power was interrupted (on or off).
The server’s response can be set using the Last Power State
feature in the BIOS Setup program’s Boot menu.
3.6.3.2
Fan Connectors
The function/operation of the fan connectors is as follows:
•
The fans are on when the board is in the S0 or S1 state.
•
The fans are off when the board is off or in the S4 or S5 state.
•
Each fan connector is wired to a fan tachometer input of the hardware monitoring and
fan control ASIC
•
All fan connectors support closed-loop fan control that can adjust the fan speed or
switch the fan on or off as needed.
•
All fan connectors have a +12 V DC connection