
148
Upgrade and Maintenance Manual
BX924
S4
Main memory
©
c
o
gn
ita
s.
G
e
se
lls
ch
ft fü
r T
ech
n
ik
-D
o
ku
m
en
ta
tio
n
m
b
H
2
0
13
Pf
a
d:
C
:\P
ro
g
ra
m
m
e
\F
C
T
\ti
m
_a
pp
\ti
m
_l
oca
l\w
or
k\PI
C
H
O
L\
O
B
J_
D
O
KU
-2
0
56
7-
00
1.
fm
8.1
Basic information
– The system board is equipped with 24 memory connectors
(12 connectors per CPU).
– In mono processor configurations only 12 memory connectors are usable.
– The system has to be equipped with at least one memory module per
processor.
– Supported capacities: 4 GB, 8 GB, 16 GB, 32 GB or 64 GB
– Maximum amount of RAM: 1536 GB
– Supported memory modules:
8.1.1
Memory sequence
8.1.1.1
Population rules
– Populate memory slot 1 / channel A (DIMM 1A) first.
– In case of dual processor configurations, populate memory slot
1 / channel E (DIMM 1E) second.
– Within all channels, memory slot 1 must be populated prior to slot 2.
Slot 2 must be populated prior to Slot 3 (for all CPUs).
– If memory modules with different ranks are used, always populate the higher
number rank DIMM first (starting from slot 1).
Type
Ranking
1
1
1R: Single-Rank, 2R: Dual-Rank, 4R: Quad-Rank, 8R: Octa Rank
Error
Correction
1R
2R
4R
8R
DDR3-1066
PC3-10600
DDR3-1333
PC3-12800
DDR3-1600
PC3-14900
RDIMMs
(Registered
DIMMs)
x
x
x
ECC or non-
ECC
LRDIMMs
(Load-Reduced
DIMMs)
x
x