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Green circuit board DDR5 ECC registered memory module with gold contacts and black chips

OWC

OWC 64GB DDR5 5600 ECC RDIMM CL46 1.1V 2Rx4 Gigabyte MS33/73

SKU CH-ZNC1-EWHWC

A 64GB DDR5 5600 ECC registered DIMM for Gigabyte MS33 and MS73 servers

  • Capacity64GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS Latency46
  • Voltage1.1V
  • ECCYes

Capacity 64GB

  • 64 GB capacity lets servers handle larger workloads
  • DDR5 5600 speed delivers high data throughput
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw per module
  • Validated for Gigabyte MS33 and MS73 platforms

64GB DDR5 ECC RDIMM for Gigabyte servers

This 64GB DDR5 5600 ECC Registered RDIMM is built for Gigabyte MS33 and MS73 workstation and server platforms. It operates at 1.1V with a CAS latency of 46 and a 2Rx4 rank configuration. The module is designed for environments that require error-correcting registered memory.

JEDEC standard voltage and registered design

The module runs at the standard DDR5 voltage of 1.1V and uses a registered buffer to reduce electrical load on the memory controller. No heat spreader is fitted, so airflow within the server chassis manages thermals. Power draw follows the JEDEC specification for PC5-44800 registered DIMMs.

ECC Registered — not for standard desktops

This memory is ECC Registered and will not work in standard desktop computers or consumer motherboards. It cannot be mixed with unbuffered or load-reduced DIMMs. Buyers needing non-ECC or unbuffered memory for a regular PC must choose a different module type.

Highlights

  • 64 GB capacity lets servers handle larger workloads
  • DDR5 5600 speed delivers high data throughput
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw per module
  • Validated for Gigabyte MS33 and MS73 platforms

Specifications

BrandOWC
Part Number5R6D52R464GB
Capacity64GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS Latency46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemGigabyte MS33-AR0
Gigabyte MS33-AR1
Gigabyte MS33-CP0
Gigabyte MS73-HB0
Gigabyte MS73-HB2

Other versions of this model

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Questions about this item

How do I install this 288-pin DDR5 ECC RDIMM in my Gigabyte MS73-HB0, and what step do people often get wrong?

Align the single key notch on the module with the slot ridge, press straight down until both retention clips click, and verify the system registers 64GB at 5600 MT/s; the common mistake is seating the module at an angle, which bends the gold contacts.

What maintenance or replacement will this 64GB DDR5 5600 CL46 1.1V module need later?

No periodic maintenance is required; keep the server chassis filters clean so airflow stays steady over the bare PCB, and replace the DIMM only if memory diagnostics report uncorrectable ECC errors.

What limit appears first when this 2Rx4 registered DIMM runs sustained workloads?

The CAS latency of 46 cycles at 5600 MT/s sets the latency floor, so memory-bound threads hit timing delays before bandwidth or thermal limits become a factor.

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