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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

OWC

OWC 64GB DDR4 2933MHz CL21 ECC Registered RDIMM 2Rx4 1.2V 288pin ThinkSystem SR650 SR950 memory upgrade

SKU CH-Y9GA-C9K2A

64 GB DDR4 2933 MHz ECC registered RDIMM for Lenovo ThinkSystem SR650 and SR950 servers

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB

  • 64GB capacity supports demanding server workloads
  • ECC registered design protects data integrity in critical applications
  • 2933MHz DDR4 speed with CL21 latency delivers responsive performance
  • 2V operation reduces power consumption in dense configurations
  • Compatible with Lenovo ThinkSystem SR650 and SR950 platforms

64GB DDR4 ECC Registered RDIMM

This 64GB DDR4 module runs at 2933MHz with CL21 latency and 1.2V operation. It uses a 288-pin registered ECC design built for Lenovo ThinkSystem SR650 and SR950 servers. The dual-rank 2Rx4 configuration targets enterprise workloads that require error correction and signal integrity.

Verify registered ECC support and slot population

Your system must accept registered ECC RDIMMs; unbuffered or non-ECC memory will not work alongside this module. The SR650 and SR950 platforms support backward-compatible speeds of 2133MHz, 2400MHz and 2666MHz if the installed CPU or firmware requires a lower data rate. Mixing registered and unbuffered DIMMs is not supported.

Standard voltage and no heat spreader

Operating at 1.2V, the module draws nominal power for DDR4 registered memory in typical server environments. Without an integrated heat spreader, thermals depend on chassis airflow across the DIMM slots. Acoustic output is governed by the server fans rather than the memory itself.

Privalumai

  • 64GB capacity supports demanding server workloads
  • ECC registered design protects data integrity in critical applications
  • 2933MHz DDR4 speed with CL21 latency delivers responsive performance
  • 2V operation reduces power consumption in dense configurations
  • Compatible with Lenovo ThinkSystem SR650 and SR950 platforms

Specifikacijos

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkSystem (Xeon SP Gen 2) SR650
Lenovo ThinkSystem (Xeon SP Gen 2) SR950

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Does the 64GB DDR4 2933MHz ECC RDIMM arrive as a single module or a kit?

The listing describes a single 64GB 288-pin DDR4 ECC registered DIMM. No cables, brackets or additional parts are mentioned, so nothing extra is required for installation.

When should I pick this 2Rx4 CL21 2933MHz stick over other speeds or ranks?

Choose this module when your ThinkSystem SR650 or SR950 needs a 64GB registered ECC DIMM at 2933MHz; it also runs at 2666, 2400 or 2133MHz if the platform requires a lower speed.

What does the 2933MHz PC4-23400 rating deliver inside a ThinkSystem SR650 or SR950?

The module operates at 2933MHz with CL21 latency at 1.2V, providing 64GB of registered ECC capacity per DIMM slot for Xeon SP Gen 2 servers.

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