Справочник Пользователя для Lenovo 3550 M4 7914A3G
Модели
7914A3G
IBM System x3550 M4
17
Mixing 1.5 V and 1.35 V DIMMs in the same server is supported; in such cases, all DIMMs operate at
1.5 V.
The maximum number of ranks supported per one channel is eight (with the exception of Load
Reduced DIMMs, where more than eight ranks are supported because one quad-rank LRDIMM
provides the same electrical load on a memory bus as a single-rank RDIMM).
provides the same electrical load on a memory bus as a single-rank RDIMM).
The maximum quantity of DIMMs that can be installed in server depends on number of CPUs, DIMM
type, rank, and operating voltage as shown in the "Maximum quantity" row in the following table.
All DIMMs in all CPU memory channels operate at the same speed, which is determined as the
lowest value of:
The memory speed supported by the specific CPU.
The lowest of maximum operating speeds for the selected memory configuration that depends on
rated speed, operating voltage, and quantity of DIMMs per channel, as shown under "Maximum
operating speed" section in the following table.
operating speed" section in the following table.
The following table (Parts 1, 2, and 3) shows the characteristics of the supported DIMMs. Tables cells
highlighted with a gray background indicate when the combination of DIMM voltage and the number of
DIMMs per channel still allows the DIMMs to operate at a rated speed.
highlighted with a gray background indicate when the combination of DIMM voltage and the number of
DIMMs per channel still allows the DIMMs to operate at a rated speed.
Table 5. Maximum memory speeds (Part 1: Intel Xeon processor E5-2600 v2 product family - RDIMMs
and LRDIMMs)
and LRDIMMs)
DIMM
specification
specification
RDIMM
LRDIMM
Rank
Single rank
Dual rank
Quad rank
Part numbers
00D5024 (4 GB)
00D5036 (8 GB)
00D5036 (8 GB)
00D5020 (4 GB)
00D5032 (8 GB)
00D5032 (8 GB)
00D5040 (8 GB)
00D5048 (16 GB)
46W0761 (32 GB)**
Rated speed
1600 MHz
1866 MHz
1866 MHz
1866 MHz
Rated voltage
1.35 V
1.5 V
1.5 V
1.5 V
Operating voltage
1.35 V
1.5 V
1.5 V
1.5 V
1.5 V
Max qty supported**
24
24
24
24
24
Max DIMM capacity
8 GB
8 GB
8 GB
16 GB
32 GB
Max memory capacity
192 GB
192 GB
192 GB
384 GB
768 GB
Max. memory at rated speed
None
128 GB
64 GB
128 GB
256 GB
Maximum operating speed
1 DIMM per channel
1333 MHz
1600 MHz
1866 MHz
1866 MHz
1866 MHz
2 DIMMs per channel
1333 MHz
1600 MHz
1600 MHz
1600 MHz
1600 MHz
3 DIMMs per channel
800 MHz
1066 MHz
1066 MHz
1066 MHz
1066 MHz
* Support is planned for later in 2013.
** The maximum quantity that is supported is shown for two processors installed.
** The maximum quantity that is supported is shown for two processors installed.