Lenovo E5-2600 Panduan Produk - Halaman 11
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The following rules apply when selecting the memory configuration:
Server supports UDIMMs, RDIMMs, and LRDIMMs.
Mixing different types of memory (UDIMMs, RDIMMs, and LRDIMMs) is not supported.
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).
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.
The following table (Parts 1 and 2) 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.
Table 5. Maximum memory speeds (Part 1: Intel Xeon processor E5-2600 product family - RDIMMs)
Specification
Rank
Part numbers
49Y1405 (2 GB)
49Y1406 (4 GB)
Rated speed
Rated voltage
Operating voltage
1.35 V
Maximum quantity*
16
Largest DIMM
4 GB
Maximum memory
64 GB
capacity
Maximum memory
64 GB
at rated speed
Maximum operating speed (MHz)
1 DIMM per channel
1333
MHz
2 DIMMs per channel
1333
MHz
3 DIMMs per channel
NS**
* Maximum quantity supported is shown for two processors installed. When one processor installed the maximum
quantity supported is a half of shown.
** NS = Not Supported
System x3550 M4 (E5-2600)
Single rank
49Y1559 (4 GB)
1333 MHz
1600 MHz
1.35 V
1.5 V
1.5 V
1.5 V
24
24
4 GB
4 GB
96 GB
96 GB
64 GB
64 GB
1333
1600 MHz
MHz
1333
1600 MHz
MHz
1066
1066 MHz
MHz
RDIMMs
Dual rank
49Y1407 (4 GB)
90Y3178 (4 GB)
49Y1397 (8 GB)
90Y3109 (8 GB)
49Y1563 (16 GB)
00D4968 (16 GB)
1333 MHz
1600 MHz
1.35 V
1.5 V
1.35 V
1.5 V
1.5 V
16
24
16 GB
16 GB
16 GB
256 GB
384 GB
384 GB
256 GB
256 GB
256 GB
1333
1333
1600 MHz
MHz
MHz
1333
1333
1600 MHz
MHz
MHz
NS**
1066
1066 MHz
MHz
Quad rank
49Y1399 (8 GB)
1066 MHz
1.35 V
1.35 V
1.5 V
24
16
16
8 GB
8 GB
128 GB
128 GB
128 GB
64 GB
800
1066
MHz
MHz
800
800 MHz
MHz
NS**
NS**
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