Power Management Features; Acpi; Power Connectors; Fan Connectors - Intel D865PCK Product Manual

Power Management Features

Power management is implemented at several levels, including:
•
Advanced Configuration and Power Interface (ACPI)
•
Hardware support:
⎯ Power connectors
⎯ Fan connectors
⎯ Suspend to RAM (Instantly Available PC technology)
⎯ Resume on Ring
⎯ Wake from USB
⎯ Wake from PS/2 keyboard/mouse
⎯ PME# wakeup support

ACPI

ACPI gives the operating system direct control over the power management and Plug & Play
functions of a computer. The use of ACPI with the desktop board requires an operating system that
provides full ACPI support.

Power Connectors

The desktop board has two power connectors. See Figure 11 on page 35 for the location of the
power connectors.

Fan Connectors

The desktop board has two chassis fan connectors (Intel Precision Cooling Technology) and one
processor fan connector. See Figure 11 on page 35 for the location of the fan connectors.

Suspend to RAM (Instantly Available PC Technology)

CAUTION
For Instantly Available PC technology, the 5 V standby line for the power supply must be capable
of delivering adequate +5 V standby current. Failure to provide adequate standby current when
using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.
CAUTION
Power supplies used with this desktop board must be able to provide enough standby current to
support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby
current necessary to support multiple wake events from the PCI and/or USB buses exceeds power
supply capacity, the desktop board may lose register settings stored in memory.
Desktop Board Features
19