Premio Computer Apollo/Shadowhawk - Manual (Page 66)

Product Description
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1.14.2.4 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. Refer to
Section 2.11.3 on page 81 for additional information.
Instantly Available PC technology enables the D845HV and D845WN boards 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 40 lists the devices and events that can wake the computer from the
S3 state.
The D845HV and D845WN boards support the PCI Bus Power Management Interface
Specification. For information on the versions of this specification, see Section 1.5. 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.
The optional standby power indicator LED shows that power is still present even when the
computer appears to be off. Figure 9 shows the location of the optional standby power
indicator LED.
CAUTION
If AC power has been switched off and the standby power indicator is still lit, disconnect the power
cord before installing or removing any devices connected to the board. Failure to do so could
damage the board and any attached devices.