Intel D945GCCR Product Specification - Page 36

Power Connector, 11.2.2, Fan Headers - processor support

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Intel Desktop Board D945GCCR 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. 1.11.2.1 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 13, page 50 Table 21, page 53 1.11.2.2 Fan Headers The function/operation of the fan headers 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 header is wired to a fan tachometer input of the hardware monitoring and fan control ASIC. • All fan headers support closed-loop fan control that can adjust the fan speed or switch the fan on or off as needed. • All fan headers have a +12 V DC connection. For information about The location of the fan headers The location of the fan headers and sensors for thermal monitoring The signal names of the processor fan header The signal names of the chassis fan headers Refer to Figure 13, page 50 Figure 9, page 32 Table 19, page 52 Table 20, page 52 36

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Intel Desktop Board D945GCCR Technical Product Specification
36
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.
1.11.2.1
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 13, page 50
The signal names of the main power connector
Table 21, page 53
1.11.2.2
Fan Headers
The function/operation of the fan headers 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 header is wired to a fan tachometer input of the hardware monitoring and
fan control ASIC.
•
All fan headers support closed-loop fan control that can adjust the fan speed or
switch the fan on or off as needed.
•
All fan headers have a +12 V DC connection.
For information about
Refer to
The location of the fan headers
Figure 13, page 50
The location of the fan headers and sensors for thermal monitoring
Figure 9, page 32
The signal names of the processor fan header
Table 19, page 52
The signal names of the chassis fan headers
Table 20, page 52