Intel i5-4300Y CL8064701558601 Data Sheet

CH B

CH A

B

B

C

B

B

C

CH A and CH B can be configured to be physical channels 0 or 1

B – The largest physical memory amount of the smaller size memory module

C – The remaining physical memory amount of the larger size memory module

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, the

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 up to two DIMM connectors

per channel. If DIMMs with different latency are populated across the channels, the

BIOS will use the slower of the two latencies for both channels. For dual-channel mode

both channels must have a DIMM connector populated. For single-channel mode, only

a single channel can have a DIMM connector populated.

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

Out-of-Order Scheduling Intel FMA technology enhancements.

Mobile 4th Generation Intel

®

 Core

™

 Processor Family, Mobile Intel

®

 Pentium

®

 Processor Family, and Mobile Intel

®

 Celeron

®

Processor Family

Datasheet – Volume 1 of 2

July 2014

20

Order No.: 329001-007