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Four green DDR5 RDIMM modules with black chips and gold contacts

OWC

OWC 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-F8E1-T2ZEQ

256 GB kit of four 64 GB DDR5 4800 CL40 ECC registered RDIMMs for Dell PowerEdge R760xa, R860 and R960 servers

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (4 x 64GB)

Voir les 4 autres configurations
  • ECC registered design protects data integrity in critical workloads
  • DDR5 4800 CL40 speed delivers high bandwidth for server applications
  • 256 GB kit (4 × 64 GB) expands memory capacity for virtualisation
  • 1 V operation reduces power draw per module
  • Compatible with PowerEdge R760xa, R860 and R960 systems

Server Memory Kit

This OWC kit provides 256 GB of DDR5 ECC registered memory across four 64 GB modules. It is designed for Dell PowerEdge R760xa, R860 and R960 servers that require registered DIMMs. The modules will not work in standard desktop computers or alongside unbuffered or load-reduced memory.

Capacity and Headroom

The 256 GB total gives ample headroom for virtualisation, large databases and memory-intensive workloads on supported PowerEdge platforms. Each 64 GB module runs at 4800 MT/s with CL40 latency, so performance scales with the server's memory controller limits. The kit cannot be mixed with unbuffered or load-reduced DIMMs, which restricts future expansion to identical registered modules.

Build and Connectors

Modules use the 288-pin DDR5 RDIMM form factor and operate at 1.1 V without heat spreaders. Registered buffering and on-die ECC help maintain data integrity in continuous server operation. The kit replaces Dell part numbers AC239379 and SNPJ52K5C/64G, confirming mechanical and electrical compatibility with the listed PowerEdge models.

Points forts

  • ECC registered design protects data integrity in critical workloads
  • DDR5 4800 CL40 speed delivers high bandwidth for server applications
  • 256 GB kit (4 × 64 GB) expands memory capacity for virtualisation
  • 1 V operation reduces power draw per module
  • Compatible with PowerEdge R760xa, R860 and R960 systems

Caractéristiques

BrandOWC
Part Number4R8D52R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemPowerEdge R760xa
PowerEdge R860
PowerEdge R960

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Questions sur cet article

Can I mix these 4800 CL40 ECC registered RDIMMs with existing unbuffered or load-reduced memory in my PowerEdge R860?

No, the manufacturer highlights state these ECC registered modules cannot be mixed with unbuffered or ECC load-reduced memory.

How can I verify the 256 GB kit is running at the rated 4800 MT/s CL40 after installation?

Check the system BIOS or a tool like CPU-Z to confirm the memory operates at DDR5 4800 (PC5-38400) with CL40 timings.

Does the box include only the four 64 GB RDIMMs or are any extra parts such as heat spreaders supplied?

The kit contains four 64 GB DDR5 4800 CL40 2Rx4 ECC registered RDIMMs; no heat spreaders or additional accessories are included.

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