Lenovo System x3750 M4, 8753 Product Manual

Lenovo System x3750 M4 (8753)

Product Guide

The Lenovo System x3750 M4 (machine type 8753) is a 4-socket server featuring a streamlined design,
optimized for price and performance, with best-in-class flexibility and expandability. Models of the x3750
M4, machine type 8753, are powered with Intel Xeon E5-4600 v2 processors, up to 12 cores each, for an
entry-level 4-socket solution. The x3750 M4 provides maximum storage density, with flexible PCI and 10
Gb Ethernet networking options in a 2U form factor.

Withdrawn from marketing : The models covered in this product guide are now withdrawn from
marketing. The replacement system is the ThinkSystem SR850 which is described in

https://lenovopress.com/LP0645.

Suggested uses : High performance computing (HPC), workloads with floating-point computations, and
small to medium databases requiring fast I/O; applications that require 4-socket performance without
needing the scalability that the X6 systems provide.

Figure 1. The Lenovo System x3750 M4

Did you know?

With a dense 2U design, the Lenovo System x3750 M4 provides advanced features and capabilities. These
include support for up to four sockets and 48 DIMMs, mix and match internal storage, up to 16 HDDs or 32
eXFlash solid-state drives (SSDs), six hot-swap, dual-rotor fans and two power supplies.

A Mezzanine LOM socket provides a choice of 1 Gigabit Ethernet (GbE) or 10 GbE networking options.
Predictive Failure Analysis and light path diagnostics proactively monitor the system’s sub-components
and provide advanced warning on power supplies, fans, drives, processors and memory.

Lenovo System x3750 M4 (8753) 1

Key features

The Lenovo System x3750 M4 blends outstanding flexibility and expandability. The x3750 M4 2+2 socket
design enables pay-as-you-grow processing with the new Intel Xeon E5-4600 v2 series processors and
memory scalability to help lower cost and manage growth. The 5+3 PCIe socket design allows you to pay
for PCIe capabilities as needed.

With the capability to support up to 48 DIMMs, four sockets, mix and match internal storage with up to 16
HDDs or 32 eXFlash SSD drives, 6 hot-swap dual rotor fans, two power supplies, and a dedicated slot for
Gigabit or 10 GbE networking with options, the x3750 M4 provides unmatched features and capabilities in
a dense 2U design.

Scalability and performance

The x3750 M4 offers numerous features to boost performance, improve scalability, and reduce costs:

The Intel Xeon processor E5-4600 v2 family improves productivity by offering superior system
performance. It provides increased productivity by offering processors up to 12 cores each and
processors with core speeds up to 3.3 GHz, L3 cache up to 30 MB, and two QuickPath
Interconnect (QPI) interconnect links operating at up to 8 GTps.

The x3750 M4 2+2 processor socket design enables pay-as-you-grow processing with the Intel
Xeon E5-4600 v2 series processors and memory scalability to help lower cost and manage growth.

Up to four processors, 48 cores, and 96 threads maximize the concurrent execution of multithreaded
applications.

Intelligent and adaptive system performance with Intel Turbo Boost Technology 2.0 allows
processor cores to run at maximum speeds during peak workloads by temporarily going beyond
processor TDP.

Intel Hyper-Threading Technology boosts performance for multithreaded applications by enabling
simultaneous multithreading within each processor core, up to two threads per core.

Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating
system vendors to better use the hardware for virtualization workloads.

48 Load Reduced DIMMs (LRDIMMs) of 1866 MHz DDR3 ECC memory provide speed, high
availability, and a memory capacity of up to 1.5 TB.

The use of eXFlash solid-state drives (SSDs) instead of, or along with, traditional spinning drives
(HDDs), can improve I/O performance. An SSD can support up to 100 times more I/O operations per
second (IOPS) than a typical HDD.

Up to 16 HDDs or 32 eXFlash SSDs, together with an optical drive at the same time, provide a
flexible and scalable all-in-one platform to meet your increasing demands.

The server offers a SAS switch backplane option to allow up to 16x 2.5-inch drives to attach to a
single controller.

The 5+3 PCI Express socket design of the server allows you to pay for PCIe capabilities as needed.

The server has a dedicated flexible mezzanine LOM slot offering a variety of 10 GbE or Gigabit
Ethernet adapters that do not occupy one of the 8 standard PCIe slots .

The server offers PCI Express 3.0 I/O expansion capabilities that improve the theoretical maximum
bandwidth by almost 100% (8 GTps per link using 128b/130b encoding) compared to the previous
generation of PCI Express 2.0 (5 GTps per link using 8b/10b encoding).

With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon
processor E5 family. This integration reduces I/O latency and increases overall system performance.

Lenovo System x3750 M4 (8753) 2

Availability and serviceability

The x3750 M4 provides many features to simplify serviceability and increase system uptime:

The server offers Chipkill, memory mirroring, and memory rank sparing for redundancy in the event
of a memory failure.

The server provides restart recovery for any failed processor. If a failure of processor 1 occurs, the
server connects the Southbridge to processor 2 for reboot.

Tool-less cover removal provides easy access to upgrades and serviceable parts, such as the
processor, memory, and adapter cards.

The server offers hot-swap drives, supporting RAID redundancy for data protection and greater
system uptime.

The server has up to two redundant hot-swap power supplies and six hot-swap dual-rotor N+N
redundant fans to provide availability for business-critical applications.

The power source independent light path diagnostics panel and individual light path LEDs lead the
technician to failed (or failing) components, which simplifies servicing, speeds up problem
resolution, and helps improve system availability.

The x3750 M4 provides error checking, Predictive Failure Analysis (PFA), or both on the following
components. Alerts are generated in advance of a possible failure, therefore increasing uptime.

Memory ECC correction (Chipkill technology)
Microprocessor built-in self test (BIST) and internal error checking
PCIe Bus parity checking
SAS Bus Parity
HDD and SSD drive CRC checking
Diskette CRC checking
USB CRC checking
Over temperature detection
Over/under voltage detection
Power supply error checking
Fan failure detection
Serial interface parity, overrun, and frame checking

Solid-state drives (SSDs) offer more reliability than traditional mechanical HDDs for greater uptime.

The built-in Integrated Management Module Version II (IMM2) continuously monitors system
parameters, triggers alerts, and performs recovery actions in case of failures to minimize downtime.

Built-in diagnostics, using Dynamic Systems Analysis (DSA) Preboot, speed up troubleshooting
tasks to reduce service time.

Three-year customer-replaceable unit and onsite limited warranty, 9 x 5 next business day. Optional
service upgrades are available.

Manageability and security

Powerful systems management features simplify local and remote management of the x3750 M4:

The server includes an Integrated Management Module II (IMM2) to monitor server availability and
perform remote management. Remote presence support is standard.

The integrated industry-standard Unified Extensible Firmware Interface (UEFI) enables improved
setup, configuration, and updates, and simplifies error handling.

Integrated Trusted Platform Module (TPM) 1.2 support enables advanced cryptographic
functionality, such as digital signatures and remote attestation.

Industry-standard Advanced Encryption Standard (AES) NI support for faster, stronger encryption.

Intel Execute Disable Bit functionality can prevent certain classes of malicious buffer overflow
attacks when combined with a supported operating system.

Lenovo System x3750 M4 (8753) 3

Intel Trusted Execution Technology provides enhanced security through hardware-based resistance
to malicious software attacks, allowing an application to run in its own isolated space, protected
from all other software running on a system.

Energy efficiency

The x3750 M4 offers the following energy-efficiency features to save energy, reduce operational costs, and
increase energy availability:

Energy-efficient planar components help lower operational costs.

Highly efficient 750 W DC, 900 W AC, and 1400 W AC power supplies. 80 PLUS Platinum
certification at high-voltage AC.

The Intel Xeon processor E5-4600 v2 product family offers better performance over the previous
generation E5-4600, although it fits into the same TDP limits.

Intel Intelligent Power Capability powers individual processor elements on and off as needed to
reduce power draw.

Low-voltage Intel Xeon processors draw less energy to satisfy the demands of power and thermally
constrained data centers and telecommunication environments.

Low-voltage 1.35 V DDR3 memory RDIMMs consume 19% less energy compared to 1.5 V DDR3
RDIMMs.

Solid-state drives (SSDs) consume as much as 80% less power than traditional spinning 2.5-inch
HDDs.

The server uses hexagonal ventilation holes, which are a part of Calibrated Vectored Cooling™
technology. Hexagonal holes can be grouped more densely than round holes, providing more
efficient airflow through the system.

Locations of key components and connectors

The following figure shows the front of the server.

Figure 2. Front view of the Lenovo System x3750 M4 (machine type 8753)

Lenovo System x3750 M4 (8753) 4

The following figure shows the rear of the server.

Figure 3. Rear view of the Lenovo System x3750 M4 (machine type 8753)

The following figure shows the locations of key components inside the server.

Figure 4. Inside view of the Lenovo System x3750 M4 (machine type 8753)

Lenovo System x3750 M4 (8753) 5

Standard specifications

The following table lists the standard specifications.

Table 1. Standard specifications

Components Specification

Machine type 8753

Form factor 2U rack.

Processor Up to four Intel Xeon E5-4600 v2 processors, each with 12 cores (2.4 GHz), ten cores (up to 2.4

GHz), eight cores (up to 3.3 GHz), six cores (2.6 GHz), or four cores (2.2 GHz). Up to 1866 MHz
memory speed. Up to 30 MB L3 cache per processor. Two processor sockets on the system
board and two processors on the processor and memory expansion tray (standard on most
models). Two QPI links up to 8.0 GTps each.

Chipset Intel C600 series.

Memory Up to 48 DIMM sockets (12 DIMMs per processor). RDIMMs and LRDIMMs (Load Reduced

DIMMs) are supported, but memory types cannot be intermixed. The memory speed is up to 1866
MHz. There are 24 DIMM sockets on the system board. There are an additional 24 DIMM sockets
on the processor and memory expansion tray (standard on most models).

Memory
maximums

With RDIMMs: Up to 768 GB with 48x 16 GB RDIMMs and four processors.
With LRDIMMs: Up to 1.5 TB with 48x 32 GB LRDIMMs and four processors.

Memory
protection

ECC, Chipkill (for x4-based memory DIMMs), memory mirroring, and memory sparing.

Disk drive
bays

Up to 16 2.5-inch hot-swap SAS/SATA bays.

Maximum
internal
storage

Up to 28.8 TB with 1.8 TB 2.5" SAS HDDs, Up to 25.6 TB with 1.6 TB 2.5” SSDs, up to 16 TB with
1 TB 2.5" NL SAS/SATA HDDs. Intermix of SAS/SATA supported.

RAID support RAID 0, 1, 10 with integrated ServeRAID M5210e with LSI SAS3108 RAID on Chip (ROC) controller.

Optional upgrades to RAID 5 and 50 are available (1GB cache no battery, or 1 or 2 GB flash­backed cache). Optional upgrades to RAID 6 and 60 when cache is also installed.

Optical drive
bays

There is one bay for an optional Multiburner drive.

Tape drive
bays

None internal. Use a supported external tape drive.

Network
interfaces

Dedicated mezzanine LOM adapter slot for a choice of 2-port 10 GbE (RJ45 or SFP+) or 4-port 1
GbE controller. One port can optionally be shared with the IMM2 management processor.
Standard models include Intel I350-T4 ML2 Quad Port GbE Adapter (I350 based) except model
C2x which includes Broadcom NetXtreme II ML2 Dual Port 10GbaseT (BCM57712 based)

Ports Front: Two USB 2.0 and one DB-15 video on front. Rear: Two USB 2.0, one DB-15 video, one DB-

9 serial, one RJ-45 systems management ports, mezzanine LOM adapter with either four 1 GbE
network ports or two 10 GbE (RJ-45 or SFP+) network ports in dedicated slot. Internal: Two
internal USB ports (for the embedded hypervisor).

Lenovo System x3750 M4 (8753) 6

PCI
Expansion
slots

Up to eight slots, five on the system board, up to three on an optional riser card. Slots 1, 2, and 3
are physically x16 slots. Alternative 2-slot riser with one x16 and one x8 slot also available. The
slots are as follows:

Slot 1: PCIe 3.0 x8; full-height, half-length (optional with riser card, requires processor 2)
Slot 2: PCIe 3.0 x8; full-height, half-length (optional with riser card, requires processor 2)
Slot 3: PCIe 3.0 x8; full-height, half-length (optional with riser card, requires processor 2)
Slot 4: PCIe 3.0 x8; low profile (requires processor 2)
Slot 5: PCIe 3.0 x8; low profile (requires processor 2)
Slot 6: PCIe 3.0 x8; low profile
Slot 7: PCIe 3.0 x8; low profile
Slot 8: PCIe 3.0 x8; low profile

Cooling Calibrated Vectored Cooling with up to six N+N redundant hot swap fans (all six standard); each

fan has two rotors.

Power supply Up to two hot-swap redundant AC power supplies (80 PLUS Platinum certification). Standard

models use 900W supplies; available 1400W AC and 750W DC options. Second power supply
requires processor expansion tray (88Y7365) or the power interposer card (88Y7367) installed.

Video Matrox G200eR2 with 16 MB memory integrated into the IMM2. Maximum resolution is 1600x1200

at 75 Hz with 16 M colors.

Hot-swap
parts

Drives, power supplies, and fans.

Systems
management

UEFI, Integrated Management Module II (IMM2), Predictive Failure Analysis, Light Path
Diagnostics, Automatic Server Restart, Lenovo XClarity Administrator, and the ServerGuide. IMM
Advanced Upgrade software feature for remote presence are standard with the x3750 M4.

Security
features

Power-on password, administrator's password, Trusted Platform Module (TPM).

Operating
systems
supported

Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi.
See the Operating system support section for specifics.

Limited
warranty

Three-year customer-replaceable unit and onsite limited warranty with 9x5 next business day
(NBD).

Service and
support

Optional service upgrades are available through Lenovo Services: 4-hour or 2-hour response time,
8-hour fix time, 1-year or 2-year warranty extension, remote technical support for hardware and
some Lenovo and OEM software.

Dimensions Height: 86 mm (3.4 in.), width: 445 mm (17.5 in.), depth: 746 mm (29.4 in.)

Weight Minimum configuration: 25 kg (55 lb.), maximum: 30 kg (65 lb.)

Components Specification

The x3750 M4 servers are shipped with the following items:

Statement of Limited Warranty

Important Notices

Rack Installation Instructions

Documentation CD that contains the Installation and User's Guide

System x Gen-III Slides Kit

System x Gen-III Cable Management Arm (CMA) or Large Capacity CMA

2.8 m (9.2 ft.) C13-C14 power cord (one for models with one power supply, and two for models with
two power supplies)

Lenovo System x3750 M4 (8753) 7

Standard models

The following table lists the standard models.

Table 2. Standard models

Model

Intel Xeon processor*
(four maximum)**

Memory**
(RDIMMs)

RAID
controller

Hot-swap
disk bays Disks PCIe GbE‡

Power
supply

Models announced March 2014

8753-A1x 2x E5-4627 v2 8C 3.3GHz

16MB 1866MHz 130W

2x 8 GB
1866 MHz

M5210e 4x 2.5"

16 max

Open 5 / 8 4x 1GbE 1x 900W

8753-A3x 2x E5-4607 v2 6C 2.6GHz

15MB 1333MHz 95W

2x 8 GB
(1333 MHz)§

M5210e 4x 2.5"

16 max

Open 5 / 8 4x 1GbE 1x 900W

8753-B1x 2x E5-4610 v2 8C 2.3GHz

16MB 1600MHz 95W

2x 8 GB
1600 MHz

M5210e 4x 2.5"

16 max

Open 5 / 8 4x 1GbE 1x 900W

8753-C1x 2x E5-4640 v2 10C 2.2GHz

20MB 1866MHz 95W

2x 8 GB
1600 MHz

M5210e
(1GB,F,R5)†

4x 2.5"
16 max

Open 8 / 8 4x 1GbE 1x 900W

8753-C2x 2x E5-4650 v2 10C 2.4GHz

25MB 1866MHz 95W

2x 8 GB
1600 MHz

M5210e
(1GB,F,R5)†

4x 2.5"
16 max

Open 5 / 8 2x 10GbE‡ 1x 900W

* Processor detail: Processor quantity and model, cores, core speed, L3 cache, memory speed, and power
consumption.
** All models except for 8753-A2x include the processor and memory expansion tray containing sockets for
processors 3 and 4 and 24 DIMMs. For model A2x, order part number 88Y7365.
‡ Model 8753-C2x includes the Broadcom NetXtreme II ML2 Dual Port 10GbaseT adapter, 00D2026. All
other models include the Intel I350-T4 ML2 Quad Port GbE Adapter, 00D1998

§ For these models, the standard DIMM is rated at 1600 MHz, but operates at up to 1333 MHz to match
the processor memory speed
† Models C1x and C2x include the ServeRAID M5200 Series 1GB Flash/RAID 5 Upgrade (part number
47C8660) which is a 1 GB flash-backed cache with support for RAID 5.

See the Standards specifications section for information about the standard features of the server.

Lenovo System x3750 M4 (8753) 8

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) 9

Table 4. Memory options

Part
number

Feature
code

Description Maximum

supported

Models
where
used

RDIMMs - 1866 MHz

00D5048 A3QL 16GB (1x16GB, 2Rx4, 1.5V) PC3-14900 CL13 ECC DDR3

1866MHz LP RDIMM

48 (12 per
processor)

-

00D5032 A3QG 8GB (1x8GB, 1Rx4, 1.5V) PC3-14900 CL13 ECC DDR3

1866MHz LP RDIMM

48 (12 per
processor)

8753­A1x

00D5020* A3QD* 4GB (1x4GB, 1Rx4, 1.5V) PC3-14900 CL13 ECC DDR3

1866MHz LP RDIMM

48 (12 per
processor)

-

RDIMMs - 1600 MHz

46W0672 A3QM 16GB (1x16GB, 2Rx4, 1.35V) PC3L-12800 CL11 ECC DDR3

1600MHz LP RDIMM

48 (12 per
processor)

-

00D5036 A3QH 8GB (1x8GB, 1Rx4, 1.35V) PC3L-12800 CL11 ECC DDR3

1600MHz LP RDIMM

48 (12 per
processor)

All other
8753
models

00D5024 A3QE 4GB (1x4GB, 1Rx4, 1.35V) PC3L-12800 CL11 ECC DDR3

1600MHz LP RDIMM

48 (12 per
processor)

-

LRDIMMs

46W0761 A47K 32GB (1x32GB, 4Rx4, 1.5V) PC3-14900 CL13 ECC DDR3

1866MHz LP LRDIMM

48 (12 per
processor)

-

* Withdrawn from marketing

The following rules apply when selecting the memory configuration:

The server supports RDIMMs and LRDIMMs. UDIMMs are not supported.

Mixing different types of memory (RDIMMs and LRDIMMs) is not supported.

Mixing 1.5 V and 1.35 V DIMMs in the same server is supported; in such a case, all DIMMs operate
at 1.5 V.

The maximum number of ranks 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 the server depends on the number of
processors installed. The table shows the maximum when all four processors are installed. When
two processors are installed, the maximum quantity supported is a half of the quantity that is shown.

All DIMMs in the server operate at the same speed, which is determined as the lowest value of:

Memory speed that is supported by the specific processor.
Lowest of maximum operating speeds for selected memory configuration that depends on
rated speed, operating voltage, and quantity of DIMMs per channel, as shown under "Max.
operating speed" section in the next table.

Table highlighting

The entries highlighted in red text in the following table indicate that the x3750 M4 supports higher
memory frequencies than the Intel processor specification. In some instances, this configuration
also results larger memory capacity that the specification recommends.

Tables cells highlighted with a gray background indicate when the specific combination of DIMM
voltage and number of DIMMs per channel still allows the DIMMs to operate at rated speed

Lenovo System x3750 M4 (8753) 10

Table 5. Maximum memory speeds

DIMM
specification

RDIMM LRDIMM

Ranks Single-rank DIMMs Dual-rank DIMMs Quad-rank

LRDIMMs

Part numbers 00D5024 (4 GB)

00D5036 (8 GB)

00D5020 (4

GB)

00D5032 (8

GB)

46W0672(16 GB) 00D5048

(16 GB)

46W0761

(32 GB)

Rated speed 1600 MHz 1866 MHz 1600 MHz 1866

MHz

1866 MHz

Rated voltage 1.35 V 1.5 V 1.35 V 1.5 V 1.5 V

Operating voltage 1.35 V 1.5 V 1.5 V 1.35 V 1.5 V 1.5 V 1.5 V

Max. qty
supported*

48 48 48 48 48 48 48

Max. DIMM
capacity

8 GB 8 GB 8 GB 16 GB 16 GB 16 GB 32 GB

Max. mem.
capacity

384 GB 384 GB 384 GB 768 GB 768 GB 768 GB 1.5 TB

Max memory at
maximum speed

256 GB 256 GB 256 GB 512 GB 768 GB 512 GB 1.0 TB

Max operating speed (MHz)

1 DIMM per
channel

1333
MHz

1600

MHz

1866 MHz 1333

MHz

1600

MHz

1866

MHz

1866 MHz

2 DIMMs per
channel

1600
MHz

1600

MHz

1866 MHz 1600

MHz

1600
MHz

1866
MHz

1866 MHz

3 DIMMs per
channel

1066
MHz

1333
MHz

1333 MHz 1066

MHz

1333
MHz

1333
MHz

1333 MHz

* Maximum quantity supported is shown for four processors installed. When two processors are installed,
the maximum quantity supported is a half of the quantity that is shown. When one processor is installed,
the quantity is one quarter of that shown.

The following memory protection technologies are supported:

ECC

Chipkill (for x4-based memory DIMMs; look for "x4" in the DIMM description)

Memory mirroring

Memory rank sparing

If memory mirroring is used, then DIMMs must be installed in pairs (minimum of one pair per CPU), and
both DIMMs in a pair must be identical in type and size.

If memory rank sparing is used, then a minimum of one quad-rank DIMM or two single-rank or dual-rank
DIMMs must be installed per populated channel (the DIMMs do not need being identical). In rank sparing
mode, one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank
varies depending on the DIMMs installed.

Lenovo System x3750 M4 (8753) 11

Internal storage

The server can support up to 16x 2.5-inch drives using the supported SAS/SATA backplane configurations.
The server supports 2.5-inch hot-swap SAS or hot-swap SATA hard disk drives, or 2.5-inch hot-swap SATA
solid-state drives. You can mix drives in the same server if you do not mix drives on the same array.

1.8-inch drive support: The use of 1.8-inch solid-state drives is now withdrawn from marketing.

Backplanes

The x3750 M4 server supports various internal storage configurations based on four different backplanes:

4-drive backplane for 2.5-inch drives: Up to four backplanes can be installed, each requiring one
SAS connection to a supported controller. One RAID controller can connect to two of these
backplanes.

8-drive backplane for 2.5-inch drives: Up to two backplanes can be installed, each requiring two
SAS connections. One RAID controller per backplane.

8-drive backplane with a SAS expander for 2.5-inch drives: Use with the other 2.5-inch drive
backplanes (8-drive or one 4-drive or two 4-drive backplanes) which will result in being able to
connect up to 16 2.5-inch drive bays to the one RAID controller.

Every four drives uses a SAS signal cable except when the 8-drive backplane with SAS expander is used.
When the 8-drive backplane with SAS expander is used, the other backplanes connect to the SAS
expander backplane with the supplied cables and then the SAS expander backplane is connected to the
single RAID controller with two cables. All backplane options include the necessary cables.

See the System x3750 M4 Installation and Service Guide for a description of all supported backplane
combinations.

Standard models (all models except A2x) ship with at least one backplane; see the Standard models
section for details. The following table shows the backplane options that are available for a x3750 M4
server.

Table 6. Internal storage expansion options

Part number Feature

code

Name Maximum

supported

00D2020 A4XA 4x 2.5" HS SAS/SATA/SSD HDD Backplane 4*

00D2022 A4XC 8x 2.5" HS SAS/SATA/SSD HDD Backplane 2

00D2011 A4XD 8x 2.5" HS SAS/SATA/SSD HDD Backplane

with controller expansion (SAS expander)

1**

* When a server is ordered via CTO, only one 4-drive backplane can be selected. If the order has more than
4 drive bays, 8-drive backplanes will be selected instead.
** Only one backplane with SAS expander (00D2011) can be installed in a server and can be used
connected to a single 8-drive backplane (00D2022), a single 4-drive backplane (00D2020), or two 4-drive
backplanes (00D2020).

Lenovo System x3750 M4 (8753) 12

Controllers for internal storage

The x3750 M4 (8753) has a integrated ServeRAID M5210e with LSI SAS3108 RAID on Chip (ROC)
controller onboard. The server also supports more RAID adapters when more than eight drives are installed.

The following table lists the RAID controllers and SAS HBAs used for the internal disk storage of the x3750
M4 server.

Table 7. RAID controllers for internal storage

Part number Feature code Description Maximum

supported

Models
where used

None A3QA SeveRAID M5210e SAS/SATA Controller 1 (integrated) All

46C9110 A3YZ ServeRAID M5210 SAS/SATA Controller 3 -

46C9114 A45W ServeRAID M1215 SAS/SATA Controller 3 -

47C8675 A3YY N2215 SAS/SATA HBA for System x 3 -

The integrated ServeRAID M5210e SAS/SATA controller in a chip on the system board for machine type

8753. It has the following specifications:

LSI SAS3108 RAID on Chip (ROC) controller.
Eight internal SAS/SATA ports.
Two internal x4 HD Mini-SAS connectors (SFF-8643).
PCI Express 3.0 x8 host interface.
Support for RAID 0, 1, and 10 standard
Support for RAID 5, 50, 6, and 60 with optional upgrades.
Optional onboard data cache: 1 GB (no battery backup), or 1 or 2 GB with flash backup
Optional support for self-encrypting drives (SEDs) with MegaRAID SafeStore.

Note: The drives and backplanes currently supported in the x3750 M4 operate at 6 Gbps speeds, so the
M5210e will also operate at 6 Gbps.

For more information, see the list of Lenovo Press Product Guides in the RAID adapters category:

https://lenovopress.com/servers/options/raid

Note: The supported adapters for internal storage need to be installed in slots 1, 2 and 3 because of cable
routing requirements. One of the supported riser cards must be installed. These slots also require that
Processor 2 be installed.

The following table lists the optional upgrades supported with the ServeRAID controllers.

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Table 8. RAID controller upgrades

Part number Feature

code

Description Upgrade

type

Maximum
supported

47C8656 A3Z0 ServeRAID M5200 Series 1GB Cache/RAID 5 Upgrade Hardware 4

47C8660 A3Z1 ServeRAID M5200 Series 1GB Flash/RAID 5 Upgrade Hardware 4

47C8664 A3Z2 ServeRAID M5200 Series 2GB Flash/RAID 5 Upgrade Hardware 4

47C8668 A3Z3 ServeRAID M5200 Series 4GB Flash/RAID 5 Upgrade Hardware 4

47C8706 A3Z5 ServeRAID M5200 Series RAID 6 Upgrade-FoD FoD 1*

47C8708 A3Z6 ServeRAID M5200 Series Zero Cache/RAID 5-FoD FoD 1

47C8710 A3Z7 ServeRAID M5200 Series Performance Accelerator-FoD FoD 1*

47C8712 A3Z8 ServeRAID M5200 Series SSD Caching Enabler-FoD FoD 1*

00AE930 A5H5 ServeRAID M1200 Zero Cache/RAID 5 Upgrade for Systems

FOD

FoD 1

* These M5200 upgrades require one of the cache upgrades (47C8656, 47C8660, 47C8664, or 47C8668)

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