Processor—Power Management

4.0Power Management

This chapter provides information on the following power management topics:

•Advanced Configuration and Power Interface (ACPI) States

•Processor Core

•Integrated Memory Controller (IMC)

•PCI Express*

•Direct Media Interface (DMI)

•Processor Graphics Controller

Figure 11. Processor Power States

G0 - WorkingS0 – Processor Fully powered on (full on mode / connected standby mode) C0 – Active mode

P0

Pn

C1 – Auto HaltC1E – Auto Halt, Low freq, low voltageC3 – L1/L2 caches flush, clocks offC6 – Save core states before shutdownC7 – Similar to C6, L3 flush G1 – Sleeping S3 Cold – Sleep – Suspend to Ram (STR) S4 – Hibernate – Suspend to Disk (STD), Wakeup on PCHS5 – Soft Off – no power, Wakeup on PCH G3 – Mechanical OFF

Note: Power states availability may vary between the different SKUs

Intel® Xeon® Processor E3-1200 v3 Product Family

 

Datasheet – Volume 1 of 2

June 2013

48

Order No.: 328907-001