IBM System x 3550 M3 2.4GHz E5645 460W Rack (1U) server

System x3550 M3 - Intel Xeon E5645 (2.4 GHz, 12MB), 4GB ECC, SAS/SATA, Gigabit Ethernet, 460W
Out of stock
£2,423.11 £2,019.26
New models of the System x3550 M3 feature new Intel® multicore processors.
This 1U-high, rack-optimized server features superior power-optimized performance, leadership virtualization, and systems management for business-critical workloads built on IBM® X-Architecture®.

Power, scalability, control, and serviceability for dynamic web-serving and business applications deliverable on demand:

- Ultrathin, high-availability, rack-optimized, 1U platform
- Powerful Intel Xeon® Series multicore processor with new microarchitecture design featuring Quick Path Interconnect (QPI) technology with Intel Extended Memory 64 Technology (EM64T)
- 2 GB, 4 GB, 8 GB, or 16 GB (optional) of high-speed DDR3 RDIMM memory will support up to 192 GB via 18 DIMM slots or 2 GB, or 4 GB (optional) of high-speed DDR3 UDIMM memory will support up to 48 GB via 12 DIMM slots
- Support for hot-swap SAS/SATA HDDs
- Eight 2.5-inch hot-swap HDD bays
- Two PCI-Express Gen 2 x16 slots (one full height, half length and one low profile); both slots convertible to PCI-X via riser card option 64-bit/133 MHz
- 460-watt AC, 675-watt AC, 675-watt high efficiency AC, or 675-watt DC auto-ranging power supply (redundant power supply optional)
- Integrated systems management processor (Integrated Management Module, or IMM)
- Integrated dual GB Ethernet standard on planar plus optional dual port daughter card or PCIe adapters for scalable network communication
- One 16550A-compatible serial port (rear), four USB ports (two front and two rear), and two video ports (one front and one rear)

System x3550 M3 - related options
The System x3550 M3 server features an Intel Xeon multicore processor that supports internal processing speeds of up to 3.60 GHz, and processing operations to memory up to 1333 MHz. They contain integrated, full-speed 4 MB, 8 MB, or 12 MB ECC L3 cache.

High-performance server subsystems
These servers are high-throughput, network servers with excellent scalability when you add memory and a second processor.

Two Intel Xeon connectors are standard on the system board to support installation of a second processor. High-speed DDR3 SDRAM Registered DIMM memory is optimized for 800 MHz, 1066 MHz, or 1333 MHz processor-to-memory subsystem performance.

Expandability and growth
The System x3550 M3 server contains high levels of function and storage capacity for a 1U, 19-inch rack-drawer package. It supports customer installation of adapters, processors, memory, and HDD options. Functions such as SVGA video, SAS, and two Gigabit Ethernet controllers are integrated on the system board.

Integrated Management Module (IMM)
The System x3550 M3 includes an Integrated Management Module that provides industry-standard Intelligent Platform Management Interface (IPMI) 2.0-compliant systems management. The IMM comes standard, and shares one of the two on-board Ethernet ports for access. The IMM can be accessed via software that is compatible with IPMI 2.0 .
Manufacturer Lenovo
SKU 794452G
Manufacturer Part Number 794452G
EAN 5711045157752
Condition: New
Detailed Specification
Thermal Monitoring TechnologiesNo
Thermal Design Power (TDP)80 W
Tcase76.2 °C
Supported instruction setsSSE4.2
Processor threads12
Processor package size42.5
Processor operating modes64-bit
Processor lithography32 nm
Processor codenameWestmere EP
Physical Address Extension (PAE)40 bit
Number of QPI links2
Memory types supported by processorDDR3-SDRAM
Memory clock speeds supported by processor800,1066,1333 MHz
Memory channels supported by processorTriple
Memory bandwidth supported by processor (max)32 GB/s
Maximum internal memory supported by processor288 GB
Idle StatesYes
FSB ParityNo
Execute Disable BitNo
Embedded options availableYes
ECC supported by processorYes
Bus typeQPI
Processor cache typeSmart Cache
Processor cache12 MB
CPU multiplier (bus/core ratio)18
Conflict Free processorNo
Processor seriesIntel Xeon 5600 series
Processor frequency2.4 GHz
Processor boost frequency2.67 GHz
Number of processors installed1
Processor modelE5645
System bus rate5.86 GT/s
Processor socketSocket B (LGA 1366)
Processor cores6
Motherboard chipsetIntel 5520
Maximum number of SMP processors2
Compatible processor seriesXeon
Processor familyIntel® Xeon® 5000 Sequence
RAID supportYes
RAID levels10
Number of hard drives supported8
Maximum storage capacity8 TB
Hard drive size2.5"
Internal memory4 GB
Memory layout (slots x size)1 x 4 GB
Memory slots18 x DIMM
Memory clock speed1066 MHz
Maximum internal memory192 GB
Internal memory typeDDR3-SDRAM
Optical drive
Optical drive typeNo
Maximum graphics adapter memory16 MB
Graphics adapter memory typeGDDR2
Graphics adapter familyMatrox
Graphics adapterG200eV
Wake-on-LAN readyYes
Networking featuresGigabit Ethernet
LAN controllerBroadcom BCM5709S
Ethernet LANYes
Ports & interfaces
VGA (D-Sub) ports quantity1
USB 2.0 ports quantity4
Serial ports quantity1
Ethernet LAN (RJ-45) ports2
Expansion slots
PCI Express x16 slots2
Compatible operating systemsWindows Server 2008, 2008 R2 (32/64-bit)
Microsoft Windows Server 2003, 2003 R2 (32/64-bit)
RHEL 5 (32/64-bit)
RHEL 6 (32/64-bit)
SLES 10/11 (32/64-bit)
VMware vSphere Hypervisor 4.1
Sun Solaris 10
Optical drive typeNo
Chassis typeRack (1U)
Power supply typeAC/DC
Number of power supply units1
Redundant power supply (RPS) supportNo
Power supply460 W
Technical details
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel Rapid Storage TechnologyNo
CPU configuration (max)2
Chassis typeRack (1U)
Compatible operating systemsWindows Server 2008, 2008 R2 (32/64-bit)
Microsoft Windows Server 2003, 2003 R2 (32/64-bit)
RHEL 5 (32/64-bit)
RHEL 6 (32/64-bit)
SLES 10/11 (32/64-bit)
VMware vSphere Hypervisor 4.1
Sun Solaris 10
Processor special features
Intel® Wireless Display (Intel® WiDi)No
Enhanced Intel SpeedStep TechnologyYes
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel VT-x with Extended Page Tables (EPT)Yes
Intel® vPro™ TechnologyNo
Intel® Turbo Boost TechnologyYes
Intel Trusted Execution TechnologyYes
Intel® Quick Sync Video TechnologyNo
Intel® My WiFi Technology (Intel® MWT)No
Intel® InTru™ 3D TechnologyNo
Intel® Insider™No
Intel® Hyper Threading Technology (Intel® HT Technology)Yes
Intel Flex Memory AccessNo
Intel Enhanced Halt StateYes
Intel Demand Based SwitchingYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)No
Intel Clear Video TechnologyNo
Intel® Clear Video HD Technology (Intel® CVT HD)No
Intel® Anti-Theft Technology (Intel® AT)No
Intel® AES New Instructions (Intel® AES-NI)Yes
Intel 64Yes
Intel Virtualization Technology (VT-x)Yes
Intel FDI TechnologyNo
Intel Dual Display Capable TechnologyNo
Intel Fast Memory AccessNo
Processor ARK ID48768
Intel Rapid Storage TechnologyNo
CPU configuration (max)2
Weight & dimensions
Width440 mm
Weight15.9 kg
Height43 mm
Depth711.4 mm
Compliance industry standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Energy Star certifiedYes
Operational conditions
Operating temperature (T-T)10 - 32 °C
Operating altitude914.4 - 2133 m
Other features
Disk array controllerLSI 1068
Mac compatibilityNo
Graphics adapter memory typeGDDR2
Graphics adapter familyMatrox
Graphics adapterG200eV
CPU configuration (max)2

Delivery Details

We use a variety of courier companies to ensure we get your parcels to you in the most efficient and environmentally friendly way possible.  

Once we have prepared your order for despatch, you will receive an email including your tracking number and link to track delivery.

Delivery Rates

Prices include VAT. Orders must be placed and funds cleared by 3:30pm.

Orders placed after 3:00pm, on a weekend or bank holiday will be processed on the next business day. 

Our Carriers require a signature on delivery; please ensure someone will be available to sign. Alternatively they may leave a card with details of how to rearrange delivery or a request for collection from their depot. Any carrier charges for redelivery will be passed on to the purchaser. Refused deliveries will be charged the return delivery fee to our warehouse.

If the package does not appear to be in good condition then please refuse the delivery. If you are unable to check the contents of your delivery at the point of delivery then please sign for the parcel as "UNCHECKED" and report any damage to us with 48 hours. Failure to do so may affect any warranty claims that you make thereafter. 

*Subject to stock location and availability. Customers must hold a pre-approved ‘same day’ registered account. 



New sealed/unopened box with full manufacturers’ warranty. All accessories and documentation present.

New Bulk

Full manufacturer's warranty. Only essential accessories included. Bulk products are as new but have been re-boxed to cut down on packaging and shipping costs. Ideal when purchasing in quantities, less waste and less time un-boxing.

New Open Box

New and unused product. The product may be missing its original packaging, or the original packaging has been opened or is no longer sealed. Limited 1-year warranty unless specified otherwise. Maybe missing documentation.

New Spares

New parts intended as field replacements. Will not usually come with any documentation or accessories but can be much cheaper than buying new retail products. Recommended when replacing like-for-like.

HPE Renew

Re-manufactured by Hewlett Packard Enterprise. Offer the same reliability and performance, but at least 15% cheaper than buying new. Covered by the full same-as-new HPE warranty starting from the date of purchase – the same warranty offered with new HPE products.


Professionally cleaned, refurbished and soak tested by our certified in house experts. Disk drives are securely erased to US DoD 5220.22-M standards. Firmware is updated to the latest where applicable. We provide a 3 month warranty on refurbished servers and 90 days warranty on all other components.


These products are untested, obscure and require specific equipment to test. Sold as is, but we do offer a 30 day DOA warranty. See the product overview for item specifics.