Intel D848PMB Specification page 40

Intel Desktop Board D848PMB Technical Product Specification
1.12.2.4 Instantly Available PC Technology
CAUTION
For Instantly Available PC technology, the +5 V standby line for the power supply must be
capable of providing adequate +5 V standby current. Failure to provide adequate standby current
when implementing Instantly Available PC technology can damage the power supply.
Instantly Available PC technology enables the Desktop Board D848PMB to enter the ACPI S3
(Suspend-to-RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the
power supply is off, and the front panel LED is amber if dual colored, or off if single colored.)
When signaled by a wake-up device or event, the system quickly returns to its last known wake
state. Table 10 on page 37 lists the devices and events that can wake the computer from the
S3 state.
The Desktop Board D848PMB supports the PCI Bus Power Management Interface Specification.
For information on the version of this specification, see Section 1.4. Add-in boards that also
support this specification can participate in power management and can be used to wake the
computer.
The use of Instantly Available PC technology requires operating system support and PCI 2.2
compliant add-in cards and drivers.
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