Power States And Targeted System Power - Intel DESKTOP BOARD D955XBK Manual

Intel Desktop Board D955XBK Technical Product Specification
Table 7 lists the power states supported by the board along with the associated system power
targets. See the ACPI specification for a complete description of the various system and power
states.
Table 7.

Power States and Targeted System Power

Global States Sleeping States
G0 – working S0 – working
state
G1 – sleeping S1 – Processor
state stopped
G1 – sleeping S3 – Suspend to
state RAM. Context
saved to RAM.
G1 – sleeping S4 – Suspend to
state disk. Context
saved to disk.
G2/S5 S5 – Soft off.
Context not saved.
Cold boot is
required.
G3 – No power to the
mechanical off system.
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.
38
Processor
States Device States
C0 – working D0 – working
state.
C1 – stop D1, D2, D3 –
grant device
specification
specific.
No power D3 – no power
except for
wake-up logic.
No power D3 – no power
except for
wake-up logic.
No power D3 – no power
except for
wake-up logic.
No power D3 – no power for
wake-up logic,
except when
provided by
battery or external
source.
Targeted System
(Note 1)
Power
Full power > 30 W
5 W < power < 52.5 W
(Note 2)
Power < 5 W
(Note 2)
Power < 5 W
(Note 2)
Power < 5 W
No power to the system.
Service can be performed
safely.