Intel D845PEBT2 User Manual

Product Description
41
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.
1.16.2.1 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 power connector locations Figure 13, page 58
The power connector signal names Table 30, page 59 and Table 33, page 60
The BIOS Setup program’s Boot menu Table 83, page 115
The ATX specification Section 1.4, page 17
1.16.2.2 Fan Connectors
CAUTION
The processor fan must be connected to the processor fan connector, not to a chassis fan
connector. Connecting the processor fan to a chassis fan connector may result in onboard
component damage that will halt fan operation.
Table 9 summarizes the fan connector function/operation.
Table 9. Fan Connector Function/Operation
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 hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fan on or off as
needed.
Front and rear
chassis fans
• +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 hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fan on or off as
needed.
For information about: Refer to:
The location of the fan connectors Figure 13, page 58
The signal names of the fan connectors Pages 59 and 60
The location of the fan connectors and sensors for thermal monitoring Figure 9, page 36

Intel D845PEBT2 Specifications

General

Brand	Intel
Model	D845PEBT2
Category	Motherboard
Language	English