Intel D915GUX Product Specification - Page 39

Power Connector, 12.2.2, Fan Connectors, 12.2.3, LAN Wake Capabilities, CAUTION - boot from usb

Page 39 highlights

Product Description 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. 1.12.2.1 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 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. For information about The location of the main power connector The signal names of the main power connector Refer to Figure 17, page 58 Table 27, page 62 1.12.2.2 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 S3, 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. For information about The location of the fan connectors The location of the fan connectors and sensors for thermal monitoring The signal names of the processor fan connector The signal names of the chassis fan connectors Refer to Figure 17, page 58 Figure 13, page 35 Table 22, page 60 Table 21, page 60 1.12.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply. LAN wake capabilities enable remote wake-up of the computer through a network. The LAN network adapter monitors network traffic at the Media Independent Interface. Upon detecting a 39

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Product Description
39
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.
1.12.2.1
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 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.
For information about
Refer to
The location of the main power connector
Figure 17, page 58
The signal names of the main power connector
Table 27, page 62
1.12.2.2
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 S3, 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.
For information about
Refer to
The location of the fan connectors
Figure 17, page 58
The location of the fan connectors and sensors for thermal monitoring
Figure 13, page 35
The signal names of the processor fan connector
Table 22, page 60
The signal names of the chassis fan connectors
Table 21, page 60
1.12.2.3
LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current.
Failure to provide adequate standby current when
implementing LAN wake capabilities can damage the power supply.
LAN wake capabilities enable remote wake-up of the computer through a network.
The LAN
network adapter monitors network traffic at the Media Independent Interface.
Upon detecting a