Processor options
The x3750 M4 supports the processor options listed in the following table. The server supports up to four
processors. Two processors are installed in sockets on the system board. Processors 3 and 4 are installed
on the processor and memory expansion tray. Most models (with the exception of A2x, as listed in the
Standard models
section) have the expansion tray installed as standard. For model A2x, order part number
88Y7365 for the processor and memory expansion tray.
The following processor quantities are supported:
One processor, installed in socket 1
Two processors, installed in sockets 1 and 2
Four processors, installed in all four sockets
Note: Configurations with one processor doe not support internal storage.
The table also shows which server models have each processor standard. If there is no corresponding
where-used model for a particular processor, this processor is only available through CTO.
Table 3. Processor options
Part number Feature code*
Description
Models
where used
88Y7365
A29Z
System x3750 M4 processor and memory expansion tray
All except A2x
00D1953
A43L / A43V
Intel Xeon E5-4607 v2 6C 2.6GHz 15MB 1333MHz 95W
8753-A3x
00D1958
A43M / A43W
Intel Xeon E5-4610 v2 8C 2.3GHz 16MB 1600MHz 95W
8753-B1x
00D1963
A43N / A43X
Intel Xeon E5-4620 v2 8C 2.6GHz 20MB 1600MHz 95W
8753-B2x
00D1978
A43R / A440
Intel Xeon E5-4627 v2 8C 3.3GHz 16MB 1866MHz 130W
8753-A1x
00D0574
A452 / A453
Intel Xeon E5-4624L v2 10C 1.9GHz 25MB 1866MHz 70W
-
00D1968
A43P / A43Y
Intel Xeon E5-4640 v2 10C 2.2GHz 20MB 1866MHz 95W
8753-C1x
00D1973
A43Q / A43Z
Intel Xeon E5-4650 v2 10C 2.4GHz 25MB 1866MHz 95W
8753-C2x
00D1988
A43T / A442
Intel Xeon E5-4657L v2 12C 2.4GHz 30MB 1866MHz 115W
-
* The first feature code corresponds to the first processor installed; the second feature is for all additional
processors.
Memory options
Lenovo DDR3 memory is compatibility-tested and tuned for optimal System x performance and
throughput. Lenovo memory specifications are integrated into the light path diagnostics for immediate
system performance feedback and optimum system uptime. From a service and support standpoint,
Lenovo memory automatically assumes the system warranty.
The Lenovo System x3750 M4 supports DDR3 memory. The server supports up to 48 DIMMs when four
processors are installed, with 12 DIMMs for each processor. There are 24 DIMM sockets (for processors 1
and 2) on the system board. The remaining DIMM sockets (for processors 3 and 4) are on the processor
and memory expansion tray. Each processor has four memory channels, and there are three DIMMs per
channel.
The x3750 M4 memory system has been carefully tuned so that the server supports higher memory
frequencies than the Intel processor specification. You can, for example, use low-voltage DIMMs but still
operate them at the rated speed.
The following table lists the memory options that are available for the x3750 M4 server.
Lenovo System x3750 M4 (8753)
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