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Four green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM memory upgrade

SKU CH-1JP3-GZ8BS

A 256GB DDR5-6400 ECC registered RDIMM kit with four 64GB modules at CL52 and 1.1V, verified for the GIGABYTE MZ73-LM0 motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 24 more
  • 256GB total capacity in a matched 4×64GB kit for full server density
  • DDR5-6400 PC5-51200 speed with CL52 latency runs at rated frequency
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors
  • 1V operation at 2Rx4 rank matches the motherboard's exact electrical requirements
  • Verified fitment for the Gigabyte MZ73-LM0 with 288-pin RDIMM form factor

Server-grade DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 256 GB of DDR5 memory across four 64 GB Registered ECC RDIMMs. It is built for servers and workstations that require error correction and registered buffering for stable operation under continuous load. The modules run at 6400 MT/s with CL52 latency at 1.1 V.

Straightforward DIMM installation

The 288-pin RDIMMs seat in standard DDR5 RDIMM slots on the GIGABYTE MZ73-LM0 motherboard. No heat spreaders are fitted, so clearance is minimal. Common issues include mixing registered and unbuffered DIMMs, populating slots in the wrong order, or skipping the BIOS update that enables full-speed operation.

Verify motherboard population rules

Check the MZ73-LM0 manual for the exact DIMM population sequence, maximum supported capacity per slot, and any BIOS version requirements before ordering. Ensure your system supports 2Rx4 Registered ECC modules at 1.1 V. This kit is not for boards that only accept UDIMMs or SODIMMs.

How it compares

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

Price $8,088.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.60 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGIGABYTE
In the box
Included items256 GB 4 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I confirm the kit is running at DDR5 6400 CL52 after installing it in the GIGABYTE MZ73-LM0?

Enter the BIOS on the GIGABYTE MZ73-LM0 and verify the memory speed shows 6400 MT/s with CAS latency 52 and voltage at 1.10V; the registered ECC RDIMM design ensures full 256 GB recognition when all four slots are populated.

What comes in the box and do I need any extra parts for the GIGABYTE MZ73-LM0?

The box contains the 256 GB kit as four 64 GB 288-pin DDR5 RDIMM modules; no additional components are required for installation on the GIGABYTE MZ73-LM0.

Why choose this 256 GB 4 x 64 GB DDR5 6400 CL52 kit over other capacities?

This exact 4 x 64 GB 2Rx4 registered ECC configuration matches the GIGABYTE MZ73-LM0 population rules for full-speed 6400 MT/s operation at 1.10V across all slots.

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