BLKD815EPFVU Intel, BLKD815EPFVU Datasheet - Page 49

• Manufacturer Part Number: BLKD815EPFVU
• Manufacturer: Intel

Specifications of BLKD815EPFVU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

1.15.1.2.1
Under ACPI, the operating system directs all system and device power state transitions. The
operating system puts devices in and out of low-power states based on user preferences and
knowledge of how devices are being used by applications. Devices that are not being used can be
turned off. The operating system uses information from applications and user settings to put the
system as a whole into a low-power state.
Table 10 lists the power states supported by the D815EFV and D815EPFV boards along with the
associated system power targets. See the ACPI specification for a complete description of the
various system and power states.
Table 10.
Notes:
1.
2.
Global States
G0 – working
state
G1 – sleeping
state
G1 – sleeping
state
G2/S5
G3 –
mechanical off
AC power is
disconnected
from the
computer.
Total system power is dependent on the system configuration, including add-in boards and peripherals
powered by the system chassis’ power supply.
Dependent on the standby power consumption of wake-up devices used in the system.
System States and Power States
Power States and Targeted System Power
Sleeping States
S0 – working
S1 – CPU stopped
S3 – suspend to
RAM. Context
saved to RAM.
S5 – soft-off.
Context not saved.
Cold boot is
required.
No power to the
system.
CPU States
C0 – working
C1 – stop
grant
No power
No power
No power
Device States
D0 – working
state
D1, D2, D3 –
device
specification
specific.
D3 – no power
except for wake
up logic.
D3 – no power
except for wake
up logic.
D3 – no power for
wake up logic,
except when
provided by
battery or external
source.
Targeted System Power
(Note 1)
Full power > 30 W
5 W < power < 30 W
Power < 5 W
Power < 5 W
No power to the system so
that service can be
performed.
Product Description
(Note 2)
(Note 2)
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