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Intel Desktop Board D915PGN/D915PSY Technical Product Specification
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.
1.13.2.1
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 on the D915PGN board
The location of the main power connector on the D915PSY board
The signal names of the main power connector
1.13.2.2
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 on the D915PGN board
The location of the fan connectors on the D915PSY board
The location of the fan connectors and sensors for thermal monitoring on the
D915PGN board
The location of the fan connectors and sensors for thermal monitoring on the
D915PSY board
The signal names of the processor fan connector
The signal names of the chassis fan connectors
42
Refer to
Figure 18, page 66
Figure 19, page 68
Table 30, page 72
Refer to
Figure 18, page 66
Figure 19, page 68
Figure 13, page 36
Figure 14, page 37
Table 28, page 71
Table 29, page 71
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