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Green printed circuit board with gold edge connectors and black memory chips, no heat spreader

OWC

OWC 64GB DDR4 2933MHz ECC Registered RDIMM CL21 2Rx4 1.2V server RAM

SKU CH-TQY5-SMHJF

64GB DDR4 ECC registered RDIMM running at 2933MHz CL21 1.2V for servers and workstations

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • 64GB capacity expands server memory for demanding workloads
  • DDR4 2933MHz CL21 delivers high-speed data throughput
  • ECC registered design detects and corrects memory errors
  • 2V operation reduces power draw in dense configurations
  • Compatible with 2133, 2400 and 2666MHz systems for flexible deployment

64GB DDR4 ECC Registered Module

This 64GB DDR4 2933MHz module is an ECC registered RDIMM built for servers, workstations and NAS systems. It matches the specifications of Supermicro part numbers MEM-DR464L-SL01-ER29 and MEM-DR464MC-ER29. The 288-pin design operates at 1.2V with a CL21 latency and a 2Rx4 rank configuration. It is not compatible with standard desktop computers or unbuffered memory.

Sustained Load Behaviour

The module runs at DDR4 2933 (PC4-23400) with ECC and registered buffering to maintain data integrity during continuous operation. Backward compatibility with 2133MHz, 2400MHz and 2666MHz platforms allows deployment in mixed-speed environments. JEDEC and RoHS compliance ensures stable performance under prolonged workloads.

Installation Notes

Installation follows standard 288-pin RDIMM seating procedures in compatible server or workstation slots. The most common issue is attempting to use this registered ECC memory in a consumer desktop board that requires unbuffered non-ECC DIMMs. Mixing registered and unbuffered modules will prevent the system from posting. Verify platform support for registered ECC before purchase.

Points forts

  • 64GB capacity expands server memory for demanding workloads
  • DDR4 2933MHz CL21 delivers high-speed data throughput
  • ECC registered design detects and corrects memory errors
  • 2V operation reduces power draw in dense configurations
  • Compatible with 2133, 2400 and 2666MHz systems for flexible deployment

Caractéristiques

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo

Questions sur cet article

How much heat does the 1.2V DDR4 module generate when running 24/7 in a server?

At 1.2V the 64GB DDR4 2933MHz ECC RDIMM draws minimal power and runs cool; no heat spreader is fitted because the JEDEC-standard design stays within normal server airflow limits.

What must my motherboard provide to use this 288-pin registered ECC DIMM?

A server or workstation board with DDR4 RDIMM slots that support ECC registered memory and 2Rx4 organisation; it will not work in standard desktop or unbuffered slots.

Will this 2933MHz CL21 module run stably alongside my existing 2400MHz DDR4 ECC RDIMMs?

Yes — the module is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, so it will down-clock to match the slower DIMMs while keeping ECC and registered operation.

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