Intel D525 AU80610006225AA Benutzerhandbuch
Produktcode
AU80610006225AA
Functional Description
34
Datasheet
3.4
Power Management
The CPU uncore has many permutations of possibly concurrently operating modes.
Care should be taken (Hardware and Software) to disable unused sections of the silicon
when this can be done with sufficiently low performance impact. Refer to the ACPI
Specification, Rev3.0 for an overview of the system power states mentioned in this
section.
Care should be taken (Hardware and Software) to disable unused sections of the silicon
when this can be done with sufficiently low performance impact. Refer to the ACPI
Specification, Rev3.0 for an overview of the system power states mentioned in this
section.
3.4.1
Main Memory Power Management
Table 3-18.Targeted Memory State Conditions
This section details the support provided by the CPU uncore corresponding to the
various processor/display/system ACPI states.
various processor/display/system ACPI states.
Table 3-19.Platform System States
Table 3-20.Processor Power States
Address
Register
Symbol
Register Name
Default
Value
Access
C8-C9
ERRST
Error Status
0000h
RWC/S, RO
CC-CDh
SMICMD
SMI Command
0000h
RO, R/W
Mode
Memory State with Internal Graphics
C0, C1
Dynamic memory rank power down
based on idle conditions
based on idle conditions
S3
Self Refresh Mode
S4
Memory power down (contents lost)
State
Description
G0/S0
Full On
G1/S3-cold
Suspend to RAM (STR). Context saved to memory (S3-Hot is not
supported)
supported)
G1/S4
Suspend to Disk (STD). All power lost (except wakeup on Intel NM10
Express Chipset).
Express Chipset).
G2/S5
Soft off. All power lost (except wake on Intel NM10 Express Chipset). Total
reboot.
reboot.
G3
Hard off. All power (AC) removed from system.
State
Description
C0
Full On
C1
Auto Halt