Lenovo RD210 User Manual
Page 75
v
The
server
supports
only
industry-standard
double-data-rate
3
(DDR3),
800,
1066,
or
1333
MHz,
PC3-10600R-999
(single-rank
or
dual-rank),
registered,
synchronous
dynamic
random-access
memory
(SDRAM)
dual
inline
memory
modules
(DIMMs)
with
error
correcting
code
(ECC).
–
The
specifications
of
a
DDR3
DIMM
are
on
a
label
on
the
DIMM,
in
the
following
format.
ggg
eRxff-PC3-wwwwwm-aa-bb-cc
where:
ggg
is
the
total
capacity
of
the
DIMM
(for
example,
1GB,
2GB,
or
4GB)
e
is
the
number
of
ranks
1
=
single-rank
2
=
dual-rank
4
=
quad-rank
ff
is
the
device
organization
(bit
width)
4
=
x4
organization
(4
DQ
lines
per
SDRAM)
8
=
x8
organization
16
=
x16
organization
wwwww
is
the
DIMM
bandwidth,
in
MBps
6400
=
6.40
GBps
(PC3-800
SDRAMs,
8-byte
primary
data
bus)
8500
=
8.53
GBps
(PC3-1066
SDRAMs,
8-byte
primary
data
bus)
10600
=
10.66
GBps
(PC3-1333
SDRAMs,
8-byte
primary
data
bus)
12800
=
12.80
GBps
PC3-1600
SDRAMs,
8-byte
primary
data
bus)
m
is
the
DIMM
type
E
=
Unbuffered
DIMM
(UDIMM)
with
ECC
(x72-bit
module
data
bus)
R
=
Registered
DIMM
(RDIMM)
U
=
Unbuffered
DIMM
with
no
ECC
(x64-bit
primary
data
bus)
aa
is
the
CAS
latency,
in
clocks
at
maximum
operating
frequency
bb
is
the
JEDEC
SPD
Revision
Encoding
and
Additions
level
cc
is
the
reference
design
file
for
the
design
of
the
DIMM
d
is
the
revision
number
of
the
reference
design
of
the
DIMM
v
The
server
supports
a
maximum
of
16
single-rank
or
dual-rank
DIMMs.
Note:
To
determine
the
type
of
a
DIMM,
see
the
label
on
the
DIMM.
The
information
on
the
label
is
in
the
format
xxxxx
nRxxx
PC3-xxxxx-xx-xx-xxx.
The
numeral
in
the
sixth
numerical
position
indicates
whether
the
DIMM
is
single-rank
(n=1)
or
dual-rank
(n=2).
v
The
server
supports
three
single-rank
or
dual-rank
DIMMs
per
channel.
The
following
table
shows
an
example
of
the
maximum
amount
of
memory
that
you
can
install
using
ranked
DIMMs:
Table
6.
Maximum
memory
installation
using
ranked
DIMMs
Number
of
DIMMs
DIMM
type
DIMM
size
Total
memory
16
Single-rank
DIMMs
4
GB
64
GB
16
Dual-rank
DIMMs
4
GB
64
GB
16
Dual-rank
DIMMs
8
GB
(if
available)
128
GB
Chapter
5.
Installing
optional
devices
and
replacing
customer
replaceable
units
59