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Four green DDR5 RDIMM modules in anti-static tray

OWC

OWC 256GB (4x64GB) DDR5 4800 CL40 ECC Registered RDIMM for Dell PowerEdge C6600 C6620 MX760C R660 R6615

SKU CH-MGBZ-RVCZK

256 GB DDR5-4800 CL40 ECC registered RDIMM kit (four 64 GB modules) validated for Dell PowerEdge C6600, C6620, MX760C, R660 and R6615 servers

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

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with CL40 latency at 1.1 V
  • ECC registered RDIMM for data integrity in servers
  • 2Rx4 dual-rank organisation on 288-pin DDR5 form factor
  • Validated for Dell PowerEdge C6600, C6620, MX760C, R660, R6615

Dell PowerEdge DDR5 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5 4800 CL40 registered ECC modules built for Dell PowerEdge C6600, C6620, MX760C, R660 and R6615 servers. It targets administrators who need maximum capacity in those specific platforms.

JEDEC DDR5 4800 registered ECC limits

The modules run at the standard 4800 MT/s JEDEC speed with CL40 latency and 1.1V operation. Registered ECC memory cannot be mixed with unbuffered or load-reduced DIMMs, and it will not work in standard desktop or consumer workstation boards.

288-pin RDIMM installation notes

Each stick is a 288-pin 2Rx4 registered DIMM without a heat spreader; seat them firmly until the ejector tabs click. The common error is populating slots in the wrong sequence for the target server, which prevents the system from posting.

Points forts

  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with CL40 latency at 1.1 V
  • ECC registered RDIMM for data integrity in servers
  • 2Rx4 dual-rank organisation on 288-pin DDR5 form factor
  • Validated for Dell PowerEdge C6600, C6620, MX760C, R660, R6615

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 SystemDell PowerEdge C6600
Dell PowerEdge C6620
Dell PowerEdge MX760C
Dell PowerEdge R660
Dell PowerEdge R6615

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Questions sur cet article

Should I choose the 4x64GB kit or buy single 64GB modules to reach 256GB?

The 4x64GB kit delivers the full 256GB in matched modules, ensuring identical timing and rank configuration across all four slots for stable multi-channel operation.

What does the 4800MHz speed mean for my PowerEdge R660 workload?

The modules run at DDR5 4800 with CL40 latency, providing the standard JEDEC data rate supported by the R660 memory controller without overclocking.

Is the 288-pin RDIMM interface compatible with the C6620 and MX760C?

Yes, the 288-pin ECC Registered RDIMM form factor matches the DIMM slots on the C6620, MX760C and other listed PowerEdge servers.

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