Fan Connector Function/Operation - Intel BOXD845GLVAL - 845GL CEL/P4 400MHZ FSB UATX Specification

Intel Desktop Board D845GLVA Technical Product Specification
✏
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- 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
The location of the power connector
The signal names of the power connector
The BIOS Setup program's Boot menu
The ATX and SFX specifications
1.13.2.2 Fan Connectors
Table 14 summarizes the function/operation of the fan connectors.
Table 14.

Fan Connector Function/Operation

Connector
Processor fan
Front chassis fan
Rear chassis fan
38
Description
• +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.
• +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.
• +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.
Refer to
Figure 5, page 50
Table 27, page 52
Table 64, page 100
Section 1.5, page 17