Acer E3-1220 v3 KC.12201.3E3 Manual De Usuario

The DDR I/O of the processor supports Electrical Power Gating (DDR-EPG) while the

processor is at C3 or deeper power state.

In C3 or deeper power state, the processor internally gates V

DDQ

 for the majority of

the logic to reduce idle power while keeping all critical DDR pins such as

SM_DRAMRST#, CKE and VREF in the appropriate state.

In C7, the processor internally gates V

CCIO_TERM

 for all non-critical state to reduce idle

power.

In S3 or C-state transitions, the DDR does not go through training mode and will

restore the previous training information.

•

Active power management is supported using L0s, and L1 states.

•

All inputs and outputs disabled in L2/L3 Ready state.

Active power management is supported using L0s/L1 state.

Intel Rapid Memory Power Management (Intel RMPM) conditionally places memory

into self-refresh when the processor is in package C3 or deeper power state to allow

the system to remain in the lower power states longer for memory not reserved for

graphics memory. Intel RMPM functionality depends on graphics/display state

(relevant only when processor graphics is being used), as well as memory traffic

patterns generated by other connected I/O devices.

Render C-state (RC6) is a technique designed to optimize the average power to the

graphics render engine during times of idleness. RC6 is entered when the graphics

render engine, blitter engine, and the video engine have no workload being currently

worked on and no outstanding graphics memory transactions. When the idleness

condition is met, the processor graphics will program the graphics render engine

internal power rail into a low voltage state.

Intel Graphics Dynamic Frequency Technology is the ability of the processor and

graphics cores to opportunistically increase frequency and/or voltage above the

guaranteed processor and graphics frequency for the given part. Intel Graphics

Dynamic Frequency Technology is a performance feature that makes use of unused

package power and thermals to increase application performance. The increase in

frequency is determined by how much power and thermal budget is available in the

Intel

®

 Xeon

®

 Processor E3-1200 v3 Product Family

June 2013

Datasheet – Volume 1 of 2

Order No.: 328907-001

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