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Eight green DDR5 RDIMM modules with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade for THINKMATE GPX-WS-740RTP7 Workstation

SKU CH-0015-A1EP3

Eight 64 GB DDR5 registered ECC RDIMM modules totalling 512 GB at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 512GB capacity via eight 64GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity
  • Low 1.10V voltage reduces power draw
  • Validated for THINKMATE GPX-WS-740RTP7 workstation

512GB DDR5 ECC RDIMM kit for ThinkMate workstations

This 512GB kit comprises eight 64GB DDR5 4800 registered DIMMs built for the ThinkMate GPX-WS-740RTP7 workstation. Each module operates at 1.1V with CL40 latency and 2Rx4 organisation. The registered design and on-die ECC target data integrity in professional workloads.

Sustained load behaviour with registered DDR5

Registered buffering reduces electrical load on the memory controller, helping maintain signal quality when all eight slots are populated at 4800 MT/s. ECC correction runs continuously during extended compute or virtualisation sessions, preventing silent data corruption without halting the pipeline. The 1.1V operating voltage keeps power draw stable across long duty cycles.

DDR5 4800 interface limits

The PC5-38400 standard caps transfer rate at 4800 MT/s, so bandwidth scales with channel count rather than higher clock speeds. CL40 latency is fixed by the JEDEC base specification for this speed grade. Registered DIMMs add one cycle of address/command delay, a trade-off the platform accepts for capacity scaling beyond unbuffered limits.

How it compares

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

Price $14,097.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $27.54 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much heat will the eight 64 GB DDR5 4800 CL40 registered DIMMs produce when the workstation runs continuously?

The kit operates at 1.10 V with no heat spreaders, so thermal output depends on your chassis airflow; each module draws standard DDR5 power at 4800 MT/s.

What must the ThinkMate GPX-WS-740RTP7 already have to accept this 512 GB ECC RDIMM kit?

The motherboard needs eight free 288-pin DDR5 RDIMM slots, a CPU and chipset that support registered ECC memory at 4800 MT/s, and a BIOS that recognises 2Rx4 64 GB modules.

Will the CL40 registered modules work alongside any existing DDR5 DIMMs I keep in the ThinkMate GPX-WS-740RTP7?

Mixing is only reliable when the other DIMMs are also DDR5 4800 MT/s registered ECC 2Rx4 parts; different speeds, ranks or unbuffered modules will force the system to down-clock or fail to boot.

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