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Four green DDR3 ECC registered DIMMs in anti-static tray

OWC

OWC 32GB (4x8GB) DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM Kit

SKU CH-D1CY-GJJVD

A 32 GB registered ECC DDR3 kit of four 8 GB modules at 1333 MHz for compatible Lenovo servers

  • Capacity32GB (4 x 8GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCYes

Capacity 32GB (4 x 8GB)

  • ECC registered design protects data integrity in servers
  • 32GB kit with four 8GB modules expands capacity
  • DDR3 1333 PC3-10600 CL9 matches system specs
  • 5V 240-pin RDIMM fits Lenovo x3550 M3, x3620 M3, x3630 M3, x3650 M3, x3850 X5
  • Replaces Lenovo part numbers including 46C0542 and 49Y1436

Server Memory Kit

This 32GB kit contains four 8GB DDR3 ECC registered DIMMs built for Lenovo System x3550 M3, x3620 M3, x3630 M3, x3650 M3 and x3850 X5 servers. It runs at 1333MHz with CL9 latency and 1.5V operation. The modules are 2Rx4 240-pin RDIMMs designed for workstation and server platforms that require registered memory with error correction.

Sustained Operation

Registered buffering reduces electrical load on the memory controller, helping maintain signal integrity when all four slots are populated under continuous workloads. ECC circuitry detects and corrects single-bit errors in real time, preventing data corruption during long compute jobs or virtualization tasks. JEDEC-compliant 1.5V operation keeps power draw predictable across extended uptime.

Compatibility Check

Verify your system is one of the listed Lenovo System x models and that the motherboard accepts DDR3 ECC registered RDIMMs — this kit will not work in desktops or boards that require unbuffered memory. Confirm the board supports 2Rx4 rank configuration and 1.5V DIMMs. Do not mix these modules with unbuffered or non-ECC memory.

Points forts

  • ECC registered design protects data integrity in servers
  • 32GB kit with four 8GB modules expands capacity
  • DDR3 1333 PC3-10600 CL9 matches system specs
  • 5V 240-pin RDIMM fits Lenovo x3550 M3, x3620 M3, x3630 M3, x3650 M3, x3850 X5
  • Replaces Lenovo part numbers including 46C0542 and 49Y1436

Caractéristiques

BrandOWC
Part Number1R3D32R4032S
Capacity32GB (4 x 8GB)
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 sur cet article

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

Each module operates at 1.5V, the standard voltage for DDR3 1333 registered DIMMs, so power draw matches the JEDEC specification for this speed and density.

What must the Lenovo System x3550 M3 already have to accept this 240-pin ECC registered kit?

The server needs free 240-pin DDR3 RDIMM slots and a BIOS that supports 2Rx4 registered ECC modules; unbuffered DIMMs cannot be mixed with this kit.

Will the 2Rx4 CL9 modules work alongside any older 1Rx4 or 1Rx8 DDR3 RDIMMs still installed in the x3650 M3?

Yes, different rank organisations can coexist in the same channel provided all modules are registered ECC DDR3 1333; the memory controller will negotiate the common CL9 timing.

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