Intel Desktop Board D850GB Technical Product Specification
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1.12.2.4 Instantly Available Technology
CAUTION
For Instantly Available 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 technology can damage the power supply. Refer to
Section 2.11.3 on page 74 for additional information.
Instantly Available technology enables the D850GB board 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-color, or off if single-color.) When
signaled by a wake-up device or event, the system quickly returns to its last known wake state.
Table 9 on page 36 lists the devices and events that can wake the computer from the S3 state.
The D850GB board supports the PCI Bus Power Management Interface Specification. For
information on the versions of this specification, see Section 1.3. 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 technology requires operating system support and PCI 2.2
compliant add-in cards and drivers.
The standby power indicator LED shows that power is still present at the RIMM, PCI bus, and
CNR connectors, even when the computer appears to be off. Figure 7 shows the location of the
standby power indicator LED.
OM10442
CR6F1
Figure 7. Location of the Standby Power Indicator LED
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