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Green rectangular DDR5 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 64GB DDR5 5600 ECC RDIMM 2Rx4 CL46 1.1V Gigabyte R183-S90/91/92/93/94 memory upgrade

SKU CH-5676-FP6N3

A 64GB DDR5 5600 ECC registered RDIMM for Gigabyte R183-S90, R183-S91, R183-S92, R183-S93 and R183-S94 servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64 GB single module doubles server memory capacity
  • DDR5 5600 speed handles heavy workloads with high bandwidth
  • ECC registered design protects data integrity in critical tasks
  • 1 V operation reduces power draw and heat output
  • Validated for Gigabyte R183-S90 through R183-S94 systems

Target system and purpose

This 64GB DDR5 ECC RDIMM is built for Gigabyte R183-S90, R183-S91, R183-S92, R183-S93 and R183-S94 servers and workstations. It adds a single registered module to systems that require error-correcting memory for data integrity. The module will not function in standard desktop computers or in platforms that accept only unbuffered or load-reduced DIMMs.

Interface and registration limits

The DDR5 5600 interface runs at 1.1V with a CAS latency of 46 and a 2Rx4 organisation. JEDEC compliance guarantees electrical compatibility, but the registered buffer and ECC logic mean the memory must be installed in slots wired for registered DIMMs. Mixing this module with unbuffered or load-reduced memory is not supported and will prevent boot.

Deciding specification

The registered ECC design is the single factor that determines whether this part fits the build. Only systems listed in the compatibility list that explicitly call for 288-pin DDR5 ECC RDIMMs can use this upgrade. Buyers whose hardware requires unbuffered or load-reduced modules cannot use this product.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,601.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
CAS latency 46
Higher than about 90% of the 483 comparable items (median 22).
Price per GB $25.03 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D52R464 GB
Total capacity64 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGigabyte R183-S90
Gigabyte R183-S91
Gigabyte R183-S92
Gigabyte R183-S93
Gigabyte R183-S94

Other versions of this model

5 more in the same range

Questions about this item

Should I choose a single 64GB module or multiple smaller modules for my Gigabyte R183-S90?

This listing is a single 64GB DDR5 5600 ECC Registered RDIMM; add more identical modules to reach your desired total capacity.

What does the 5600 speed rating mean once the module is installed in a Gigabyte R183-S92?

The module runs at DDR5 5600 (PC5-44800) with CL46 latency at 1.1V, delivering the rated throughput when the platform enables that speed.

Is the 288-pin DDR5 interface compatible with standard desktop motherboards?

No — this is an ECC Registered RDIMM for workstations and servers such as the Gigabyte R183-S90 through R183-S94 and will not work in standard desktop boards.

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