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Two green DDR4 RDIMM sticks in anti-static wrap

OWC

OWC 64GB (2x32GB) DDR4 2933 ECC Registered RDIMM memory upgrade

SKU CH-4KZ6-ZEQBQ

64GB kit of two 32GB DDR4 2933 ECC registered RDIMMs for Dell PowerEdge C4140 servers

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB (2 x 32GB)

Voir les 4 autres configurations
  • ECC registered design protects data integrity in servers
  • 64GB kit with two 32GB modules expands capacity
  • DDR4 2933 speed with CL21 latency matches system specs
  • 2V operation reduces power draw under load
  • Validated for PowerEdge C4140 SkyLake CPU platforms

OWC 64GB DDR4 ECC RDIMM kit

This kit provides 64GB of DDR4 2933 ECC Registered memory in two 32GB modules. It is built for servers and workstations that require registered DIMMs with error correction. Standard desktop computers cannot use this memory type. Mixing it with unbuffered or load-reduced modules is not supported.

Registered DDR4 2933 speed limits

The modules run at DDR4 2933 with CL21 latency and 1.2V voltage. They are backward compatible with 2133MHz, 2400MHz and 2666MHz system buses. Registered DIMMs add a clock cycle of buffering, so the memory controller must support registered operation. This memory will not function in platforms that only accept unbuffered DIMMs.

Installing in PowerEdge C4140 systems

The 288-pin RDIMMs install directly into the server's memory slots; no heat spreader is present. Common issues include populating slots in the wrong order for the CPU configuration or mixing ranks incorrectly. The kit replaces Dell part numbers 8WKDY, AA579531, AA601616, AB003153, SNP8WKDYC/32G and SNP8WKDYC/32VXR. Verify the system BIOS is current before installation.

Points forts

  • ECC registered design protects data integrity in servers
  • 64GB kit with two 32GB modules expands capacity
  • DDR4 2933 speed with CL21 latency matches system specs
  • 2V operation reduces power draw under load
  • Validated for PowerEdge C4140 SkyLake CPU platforms

Caractéristiques

BrandOWC
Part Number2R9D42R4064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemPowerEdge C4140 (SkyLake CPU)

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Questions sur cet article

Should I choose the 64GB kit with two 32GB modules or a different capacity for my PowerEdge C4140?

The 64GB kit provides two 32GB DDR4 2933 ECC Registered RDIMMs, which matches the validated configuration for the PowerEdge C4140 with SkyLake CPUs.

What does the DDR4 2933 PC4-23400 CL21 rating mean once the memory is installed in the server?

The modules will run at up to 2933 MT/s with CAS latency 21 at 1.2V, and the registered ECC design adds error correction and signal buffering required for server stability.

How does the 288-pin DDR4 ECC Registered RDIMM interface limit what I can mix with these modules?

The 288-pin registered ECC RDIMM form factor cannot be mixed with unbuffered or load-reduced ECC memory; only identical registered ECC RDIMMs should populate the remaining slots.

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