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Four green DDR3 RDIMM modules in static bags

OWC

OWC 64GB (4x16GB) DDR3 1333 ECC Registered RDIMM for Lenovo x3550 M3 x3620 M3 x3630 M3 x3650 M3 memory upgrade

SKU CH-9TSA-02FD7

64GB kit of four 16GB DDR3 1333 ECC registered RDIMMs for Lenovo System x3550 M3, x3620 M3, x3630 M3, x3650 M3 and x3850 X5 servers

  • Capacity64GB (4 x 16GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity on supported Lenovo servers
  • 64 GB total capacity delivered as four 16 GB DDR3 modules
  • DDR3 1333 MHz speed matches PC3-10600 spec for listed x3550 M3, x3620 M3, x3630 M3, x3650 M3, x3850 X5
  • 240-pin RDIMM form factor fits the validated Lenovo part numbers 03X3813 and 0A89413
  • 5 V CL9 2Rx4 configuration meets JEDEC and RoHS compliance standards

Server memory upgrade

This 64GB kit contains four 16GB DDR3 1333 registered ECC modules built for Lenovo System x3550 M3 x3620 M3 x3630 M3 x3650 M3 and x3850 X5 servers. The 240-pin RDIMMs run at 1.5V with CL9 latency and 2Rx4 organisation. They replace Lenovo part numbers 03X3813 and 0A89413.

Sustained workload behaviour

ECC registered design corrects single-bit errors and buffers address and command signals so the memory controller stays stable during long compute runs. The modules are JEDEC and RoHS compliant and tested in-house for multi-hour operation without throttling.

Registered ECC requirement

This kit only works in systems that require registered ECC DDR3 RDIMMs; it will not function in desktops or workstations that take unbuffered non-ECC memory and it cannot be mixed with unbuffered modules.

Highlights

  • ECC registered design protects data integrity on supported Lenovo servers
  • 64 GB total capacity delivered as four 16 GB DDR3 modules
  • DDR3 1333 MHz speed matches PC3-10600 spec for listed x3550 M3, x3620 M3, x3630 M3, x3650 M3, x3850 X5
  • 240-pin RDIMM form factor fits the validated Lenovo part numbers 03X3813 and 0A89413
  • 5 V CL9 2Rx4 configuration meets JEDEC and RoHS compliance standards

Specifications

BrandOWC
Part Number1R3D32R4064S
Capacity64GB (4 x 16GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo System x3550 M3
Lenovo System x3620 M3
Lenovo System x3630 M3
Lenovo System x3650 M3
Lenovo System x3850 X5

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Questions about this item

How much power does the 1.5V DDR3 1333 kit draw when the server runs continuously?

Each module operates at 1.5V; total consumption depends on the server's memory controller and workload, not on the kit alone.

What must the Lenovo System x3550 M3 already have to accept these 240-pin RDIMMs?

The server must support DDR3 ECC Registered memory and provide 240-pin DIMM slots; unbuffered DIMMs cannot be mixed with this kit.

Can I keep the existing 03X3813 modules and add this 64GB kit alongside them?

All DIMMs should match in capacity, speed and manufacturer for optimal performance; mixing different modules is not recommended.

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