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Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification
48
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.
1.14.2.1 Power Connector
ATX12V- and SFX12V-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 power connector Figure 13, page 62
The signal names of the power connector Table 31, page 66
The BIOS Setup program’s Boot menu Table 70, page 115
The ATX and SFX specifications Section 1.5, page 20
1.14.2.2 Fan Connectors
Table 17 summarizes the function/operation of the fan connectors for Desktop Boards with the
hardware monitoring ASIC. Table 18 summarizes the function/operation of the fan connectors for
Desktop Boards with the hardware monitoring and fan control ASIC.
Table 17. Fan Connector Function/Operation for Desktop Boards with a Hardware
Monitoring ASIC
Connector Description
Processor fan • +12 V DC connection for a processor fan or active fan heatsink.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
• Wired to a fan tachometer input of the I/O controller.
Front chassis fan • +12 V DC connection for a system or chassis fan.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
Rear chassis fan • +12 V DC connection for a system or chassis fan.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
• Wired to a fan tachometer input of the I/O controller.