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Four green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR25600-924K4 256GB (4x64GB) DDR4 3200 ECC RDIMM memory upgrade

SKU CH-8MRK-RMC72

A 256GB kit of four 64GB DDR4 3200 ECC registered DIMMs validated for Dell PowerEdge XE7100, XE7420 and XE7440 servers

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 256GB 4X64GB

Show 3 more configurations

Struck-through versions exist but are not stocked here.

  • 256 GB total capacity from four 64 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered design detects and corrects data errors
  • 20 V operation reduces server power draw
  • Validated for Dell PowerEdge XE7100 XE7420 XE7440 racks

Dell PowerEdge ECC RDIMM kit

This 256GB kit contains four 64GB DDR4 3200 ECC registered DIMMs validated for Dell EMC PowerEdge XE7100, XE7420 and XE7440 rack servers. It targets IT teams expanding memory capacity in those specific platforms. Builders using consumer motherboards or non-Dell workstations should look elsewhere.

Thermals noise and power

Each module operates at 1.2V without a heat spreader, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller during sustained workloads. No acoustic or thermal specifications beyond standard JEDEC DDR4 limits are published.

Registered 2Rx4 organisation

The 2Rx4 rank structure and CL22 latency determine how the memory controller schedules commands on these 288-pin RDIMMs. Compatibility depends on the server firmware recognising this exact organisation. Systems requiring different rank configurations or unbuffered DIMMs will not accept this kit.

Highlights

  • 256 GB total capacity from four 64 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered design detects and corrects data errors
  • 20 V operation reduces server power draw
  • Validated for Dell PowerEdge XE7100 XE7420 XE7440 racks

Specifications

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR4 3200MHZ ECC RDIMM Registered Server Memory
Part NumberMR25600-924K4
Capacity256GB (4 x 64GB)
SpeedDDR4 3200 (PC4 25600)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemDell
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (4X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the four 64GB DDR4 RDIMMs in my Dell PowerEdge XE7440, and what step is often missed?

Power down the server, open the chassis, align each 288-pin module with the slot key and press firmly until both latches click; the step often missed is verifying in BIOS that all 256GB are recognised at 3200 MT/s.

What maintenance or replacement will this 256GB ECC registered kit need over its service life?

No routine maintenance is required; if a module fails the ECC logging will identify it, and the individual 64GB RDIMM can be replaced without disturbing the other three.

What limit appears first when this memory runs sustained workloads on a PowerEdge XE7100?

The CAS latency of CL22 at 1.20V sets the timing ceiling; sustained throughput is bounded by the DDR4 3200 transfer rate before thermal or voltage limits are reached.

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