Intel Desktop Board DH87RL Technical Product Specification
34
Table 11. Power States and Targeted System Power
Global States
Sleeping States
Processor
States
Device States
Targeted System
Power
(Note 1)
G0 – working
state
S0 – working C0 – working D0 – working
state.
Full power > 30 W
G1 – sleeping
state
S3 – Suspend to
RAM. Context
saved to RAM.
No power D3 – no power
except for
wake-up logic.
Power < 5 W
(Note 2)
G1 – sleeping
state
S4 – Suspend to
disk. Context
saved to disk.
No power D3 – no power
except for
wake-up logic.
Power < 5 W
(Note 2)
G2/S5 S5 – Soft off.
Context not saved.
Cold boot is
required.
No power D3 – no power
except for
wake-up logic.
Power < 5 W
(Note 2)
G3 –
mechanical off
AC power is
disconnected
from the
computer.
No power to the
system.
No power D3 – no power for
wake-up logic,
except when
provided by
battery or
external source.
No power to the system.
Service can be performed
safely.
Notes:
1. Total system power is dependent on the system configuration, including add-in boards and peripherals
powered by the system chassis’ power supply.
2. Dependent on the standby power consumption of wake-up devices used in the system.
1.11.1.2 Wake-up Devices and Events
Table 12 lists the devices or specific events that can wake the computer from specific
states.
Table 12. Wake-up Devices and Events
These devices/events can wake up the computer… …from this state
Power switch
S3, S4, S5
(
RTC alarm
S3, S4, S5
(Note 1)
LAN
S3, S4, S5
USB S3
WAKE#
S3, S4, S5
Consumer IR S3, S4, S5
(Notes 2 and 4)
Notes:
1. S4 implies operating system support only.
2. Wake from S4 and S5 is recommended by Microsoft
3. Wake on LAN is only supported from sleep (S3) or hibernate (S4) in Windows 8.
4. When Deep S4/S5 is enabled only Wake from RTC and Front Panel is supported.
NOTE
The use of these wake-up events from an ACPI state requires an operating system
that provides full ACPI support. In addition, software, drivers, and peripherals must
fully support ACPI wake events.
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