Intel E3-1105C AV8062701048800 Ficha De Dados

Intel

®

 Xeon

®

 and Intel

®

 Core™ Processors For Communications Infrastructure

Datasheet - Volume 1 of 2

May 2012

28

Document Number: 327405

-

001

Dual-Channel Symmetric mode, also known as interleaved mode, provides maximum 

performance on real world applications. Addresses are ping-ponged between the 

channels after each cache line (64-byte boundary). If there are two requests, and the 

second request is to an address on the opposite channel from the first, that request can 

be sent before data from the first request has returned. If two consecutive cache lines 

are requested, both may be retrieved simultaneously, since they are ensured to be on 

opposite channels. Use Dual-Channel Symmetric mode when both Channel A and 

Channel B DIMM connectors are populated in any order, with the total amount of 

memory in each channel being the same.

When both channels are populated with the same memory capacity and the boundary 

between the dual channel zone and the single channel zone is the top of memory, IMC 

operates completely in Dual-Channel Symmetric mode. 

The DRAM device technology and width may vary from one channel to the other. 

In all modes, the frequency of system memory is the lowest frequency of all memory 

modules placed in the system, as determined through the SPD registers on the 

memory modules. The system memory controller supports one or two DIMM 

connectors per channel. The usage of DIMM modules with different latencies is allowed. 

For dual-channel modes both channels must have a DIMM connector populated and for 

single-channel mode only a single-channel can have an DIMM connector populated. 

The following sections describe the Just-in-Time Scheduling, Command Overlap, and 

Out-of-Order Scheduling Intel FMA technology enhancements.

C H   B

C H   A

B

B

C

B

B

C

B   – T h e   la r g e s t  p h y s ic a l  m e m o r y   a m o u n t  o f  th e   s m a lle r   s iz e   m e m o r y   m o d u le
C   – T h e   r e m a in in g   p h y s ic a l  m e m o r y   a m o u n t  o f  th e   la r g e r   s iz e   m e m o r y   m o d u le