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Four green DDR4 RDIMM sticks, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 3200 ECC RDIMM Dell PowerEdge R7525 memory upgrade

SKU CH-YNJS-4RXJE

256 GB kit of four 64 GB DDR4 3200 ECC registered DIMMs for Dell PowerEdge R7525 servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 256 GB total capacity across four 64 GB modules
  • DDR4 3200 speed rated at PC4-25600 for server workloads
  • ECC registered RDIMM design protects data integrity
  • 20 V operation with CL22 latency for efficiency
  • Validated compatibility with Dell PowerEdge R7525 rack server

Dell PowerEdge R7525 memory upgrade

This 256GB kit uses four 64GB DDR4 3200 ECC RDIMM modules built for the Dell PowerEdge R7525 rack server. Registered buffering and error correction protect data integrity in virtualization, database and high-density compute workloads. The 2Rx4 organization matches the platform's memory architecture for full-channel population.

Registered DDR4 3200 kit for four-slot population

Each module runs at 1.2V with CL22 timing and fits the 288-pin RDIMM slots on the R7525 motherboard. The kit fills four DIMM positions, leaving remaining channels available for further expansion within the server's maximum capacity. No heat spreaders are included, relying on the chassis airflow design for cooling.

Sustained load behaviour in enterprise workloads

Modules are stress-tested under load to verify stability during continuous operation in multi-socket server environments. ECC detection and correction maintain uptime during extended memory-intensive tasks such as in-memory analytics or container hosting. Registered signalling reduces electrical load on the memory controller at full population.

How it compares

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

Price $1,721.99
Pricier than about 66% 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 $6.73 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items256 GB (4 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the CL22 latency become the bottleneck during sustained server workloads?

The modules run at CL22 timing, which is the rated latency for DDR4 3200 operation. Under continuous load the memory controller waits for each CAS cycle, so CL22 sets the baseline response time.

How much heat do the four 64 GB registered DIMMs generate when running 24/7 at 1.2 V?

Each RDIMM operates at 1.20 V without a heat spreader. Registered modules add a small register power draw, but total thermal output stays within standard DDR4 RDIMM limits for the Dell PowerEdge R7525 chassis airflow.

What must the Dell PowerEdge R7525 already have to accept this 256 GB kit?

The server needs 288-pin DDR4 RDIMM slots that support 2Rx4 registered ECC modules at 3200 MT/s and a BIOS revision that recognises 64 GB density per slot.

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