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Four green DDR5 RDIMM modules without heat spreaders

OWC

OWC 64GB (4x16GB) DDR5 5200 CL42 ECC Registered RDIMM server RAM

SKU CH-QSZZ-T9WV3

Four-module 64 GB DDR5-5200 kit with ECC registered RDIMMs, CL42 latency and 1.1 V operation for servers and workstations

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • 64 GB total capacity from four 16 GB modules
  • DDR5 5200 MT/s speed with CL42 latency
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces server power draw
  • JEDEC standard compliant for warranty safe upgrades

Server-grade DDR5 kit

This OWC kit provides 64GB of DDR5 memory as four 16GB registered DIMMs. It is built for workstations and servers that require ECC error correction and registered signalling. Standard desktop platforms cannot use this memory. Buyers who need unbuffered or load-reduced modules should look elsewhere.

Straightforward DIMM installation

The 288-pin modules seat in standard DDR5 RDIMM slots at 1.1V. System firmware must support registered ECC memory or the kit will not post. Mixing these sticks with unbuffered or load-reduced DIMMs prevents boot. No heat spreaders are fitted, so airflow in the chassis must be adequate.

Registered ECC with CL42 latency

The decisive specification is the registered ECC design combined with CL42 timing at 5200 MT/s. Only platforms that explicitly support DDR5 registered DIMMs can use this kit. Systems requiring unbuffered memory or a different latency profile are incompatible.

Points forts

  • 64 GB total capacity from four 16 GB modules
  • DDR5 5200 MT/s speed with CL42 latency
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces server power draw
  • JEDEC standard compliant for warranty safe upgrades

Caractéristiques

BrandOWC
Part Number5R2D51R4064S
Capacity64GB (4 x 16GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions sur cet article

How can I confirm the kit is running at 5200 MT/s with CL42 after installation?

Check the memory speed and latency in the server BIOS or a tool like CPU-Z; they should show DDR5-5200 and CAS 42 for each 16 GB module.

What does the 64 GB kit contain and is anything else required?

The box includes four 16 GB DDR5 288-pin ECC registered RDIMMs; no extra parts are needed if your workstation or server supports registered ECC memory.

Should I choose the CL42 version or a lower-latency kit for my server?

This kit is specified at CL42; select it when your platform requires DDR5-5200 registered ECC modules at that latency.

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