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Table 8.
Power States and Targeted System Power
Global States
G0 – working state
G1 – sleeping state
G1 – sleeping state
G1 – sleeping state
G2/S5
G3 – mechanical off
AC power is
disconnected from
the computer.
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.
1.12.1.2
Wake-up Devices and Events
Table 9 lists the devices or specific events that can wake the computer from specific states.
Table 9.
Wake-up Devices and Events
These devices/events can wake up the computer...
LAN
Modem (back panel Serial Port A)
PME# signal
Power switch
PS/2 devices
RTC alarm
USB
WAKE#
Note:
For LAN and PME# signal, S5 is disabled by default in the BIOS Setup program. Setting this option to Power On
will enable a wake-up event from LAN in the S5 state.
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.
Process
Sleeping States
or States
S0 – working
C0 –
working
S1 – Processor
C1 – stop
stopped
grant
S3 – Suspend to
No power
RAM. Context
saved to RAM.
S4 – Suspend to
No power
disk. Context
saved to disk.
S5 – Soft off.
No power
Context not saved.
Cold boot is
required.
No power to the
No power
system.
Targeted System
Device States
Power
D0 – working state.
Full power > 30 W
D1, D2, D3 – device
5 W < power < 52.5 W
specification specific.
D3 – no power except
Power < 5 W
for wake-up logic.
D3 – no power except
Power < 5 W
for wake-up logic.
D3 – no power except
Power < 5 W
for wake-up logic.
D3 – no power for
No power to the
wake-up logic, except
system. Service can
when provided by
be performed safely.
battery or external
source.
...from this state
(Note)
S1, S3, S4, S5
S1, S3
(Note)
S1, S3, S4, S5
S1, S3, S4, S5
S1, S3
S1, S3, S4, S5
S1, S3
S1, S3, S4, S5
Product Description
(Note 1)
(Note 2)
(Note 2)
(Note 2)
33
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