Intel D845GEBV2 BLKD845GERG2-10PK User Manual

Product codes
BLKD845GERG2-10PK
Page of 128
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.