IBM NeXtScale System User Manual

74 IBM NeXtScale System Planning and Implementation Guide
The locations of the DIMM sockets relative to the processors are shown in
Figure 4-7.
Figure 4-7 Memory DIMM slots
Memory DIMM installation: Independent channel mode
Independent channel mode provides a maximum memory of 64 GB of usable
memory with one installed processor, and 128 GB of usable memory with two
installed microprocessor (using 16 GB DIMMs).
Table 4-6 shows DIMM installation if you have one processor that is installed.
Table 4-6 Memory population with one processor installed
Table 4-7 on page 75 shows DIMM installation if you have two processors that
are installed. A minimum of two memory DIMMs (one for each processor) are
required when two processors are installed.
DIMM 1DIMM 2
DIMM 3
DIMM 4
DIMM 8DIMM 7
CPU 1
CPU 2
DIMM 5DIMM 6
Processor 1
Number of DIMMs DIMM 1 DIMM 2 DIMM 3 DIMM 4
1 x
2
x x
3
x x x
4
x x x x

IBM NeXtScale System Specifications

General

Brand	IBM
Model	NeXtScale System
Category	Server
Language	English