Table 6. Intel ® Server Board S2600Co Dimm Nomenclature - Intel S2600CO series User Manual

Functional Architecture Overview
8Rx4
32G
(QDP)
3.2.2.2 Memory Slot Identification and Population Rules
Note: Although mixed DIMM configurations may be functional, Intel
validation on systems that are configured with identical DIMMs installed.
Each installed processor provides four channels of memory. On the Intel
S2600CO each memory channel support 2 memory slots, for a total possible 16 DIMMs
installed.
System memory is organized into physical slots on DDR3 memory channels that belong

to processor sockets.
The memory channels from processor socket 1 are identified as Channel A, B, C and D.

The memory channels from processor socket 2 are identified as Channel E, F, G, and H.
Each memory slot on the server board is identified by channel and slot number within

that channel. For example, DIMM_A1 is the first slot on Channel A on processor 1;
DIMM_E1 is the first DIMM socket on Channel E on processor 2.
The memory slots associated with a given processor are unavailable if the

corresponding processor socket is not populated.
A processor may be installed without populating the associated memory slots provided a

second processor is installed with associated memory. In this case, the memory is
shared by the processors. However, the platform suffers performance degradation and
latency due to the remote memory.
Processor sockets are self-contained and autonomous. However, all memory subsystem

support (such as Memory RAS, Error Management,) in the BIOS setup is applied
commonly across processor sockets.
The BLUE memory slots on the server board identify the first memory slot for a given

memory channel.
DIMM population rules require that DIMMs within a channel be populated starting with the BLUE
DIMM slot or DIMM farthest from the processor in a "fill-farthest" approach. In addition, when
populating a Quad-rank DIMM with a Single- or Dual-rank DIMM in the same channel, the
Quad-rank DIMM must be populated farthest from the processor. Intel
Code (MRC) will check for correct DIMM placement.
®
On the Intel Server Board S2600CO a total of 16 DIMM slots is provided (2 CPUs – 4
Channels/CPU, 2 DIMMs /Channel). The nomenclature for DIMM sockets is detailed in the
following table:
Table 6. Intel
Processor Socket 1
(0) (1)
Channel A Channel B
A1 A2 B1 B2
24
64G 1066
®
Server Board S2600CO DIMM Nomenclature
(2) (3)
Channel C Channel D
C1 C2 D1 D2
Intel order number G42278-004
Intel® Server Board S2600CO Family TPS
1066 1066
®
only performs platform
®
Processor Socket 2
(0) (1)
Channel E Channel F
E1 E2 F1 F2
1066
®
Server Board
Memory Reference
(2) (3)
Channel G Channel H
G1 G2 H1
Revision 1.4
H2