IBM NeXtScale System Planning And Implementation Manual page 94

Table 4-9 Memory population table with two processors installed: Mirrored channel mode
Processor 1
DIMM 1 DIMM 2
4 x x
6 x x
8 x x
Table 4-10 (RDIMMs) and Table 4-11 on page 77 (UDIMMs and LRDIMMs) show
the maximum memory speeds that are achievable. The tables also show the
maximum memory capacity at any speed that is supported by the DIMM and the
maximum memory capacity at the rated DIMM speed.
Table 4-10 Maximum memory speeds (RDIMMs)
Spec
Rank
Part numbers
Rated speed
Rated voltage
Operating voltage
a
Max quantity
Largest DIMM
Max memory capacity
Max memory at rated speed
Maximum operating speed (MHz)
1 DIMM per channel
a. The maximum quantity that is supported is shown for two installed processors. When one processor
is installed, the maximum quantity that is supported is half of that shown.
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IBM NeXtScale System Planning and Implementation Guide
DIMM 3 DIMM 4 DIMM 5
x
x x x
x x x
Single rank
00D5024 (4GB)
00D5036 (8GB)
46W0672 (16GB)
1600 MHz
1.35V
1.35V or 1.5V
8
8 GB
64 GB
64 GB
1600 MHz
Processor 2
DIMM 6 DIMM 7
x
x
x x
RDIMMs
Dual rank
46W0735 (4 GB) 00D5028 (4 GB)
00D5044 (8 GB) 00D5040 (8 GB)
00D5048 (16 GB)
1600 MHz
1.35 V
1.35V or 1.5V
8
16 GB
128 GB
128 GB
1600 MHz
DIMM 8
x
1866 MHz
1.5 V
1.5 V
8
16 GB
128 GB
128 GB
1866 MHz