Power Connectors; Fan Connectors; Fan Speed Control (Intel ® Precision Cooling Technology); Resume On Ring - Intel D845PEBT2 Product Manual

Power Connectors

Desktop Board D845PEBT2 has two power connectors. See Figure 13 on page 36 for the location
of the power connectors.

Fan Connectors

Desktop Board D845PEBT2 has two chassis fan connectors (Intel Precision Cooling Technology)
and one processor fan connector. See Figure 13 on page 36 for the location of the fan connectors.
Fan Speed Control (Intel
Intel Precision Cooling Technology automatically adjusts the chassis fan speeds depending on the
system's temperature. This feature reduces system fan noise by lowering the speed of the chassis
fans connected to the front and rear chassis fan connectors (J8H3 and J1B1). The processor fan
connector (J1F1) is not controlled.
The fan speed control feature can be disabled in the BIOS, resulting in the chassis fans always
operating at full speed. This feature should be disabled if a self-controlled fan is attached to a
chassis fan connector.
Overall system noise reduction will vary based on system configuration and environment.

Resume on Ring

The operation of Resume on Ring can be summarized as follows:
•
Resumes operation from either ACPI S1 or ACPI S3 state
•
Requires only one call to access the computer
•
Detects incoming call similarly for external and internal modems
•
Requires modem interrupt be unmasked for correct operation

Wake from USB

USB bus activity wakes the computer from an ACPI S1 or S3 state.
✏
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.

Wake from PS/2 Keyboard/Mouse

PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.

PME# Wakeup Support

When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or
S5 state.
®
Precision Cooling Technology)
Desktop Board Features
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