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Green rectangular DDR4 DIMM with black chips, gold contacts, no heat spreader

SK hynix

SK hynix HMA42GR7MFR4N-TF 16GB DDR4-2133 ECC Registered CL15 Server RAM

SKU CH-XY1K-CNCWE

16 GB DDR4-2133 ECC registered DIMM with CL15 latency and 1.2 V operation

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • Speed2133
  • CAS Latency15
  • Voltage1.2V
  • ECCECC Chipkill
  • ECC Chipkill protects data integrity in critical workloads
  • Registered signal processing stabilises high-density server configurations
  • DDR4-2133 speed delivers 17000 MB/s bandwidth for demanding applications
  • CL15 latency at 1.2 V balances responsiveness with power efficiency
  • 16 GB dual-rank 2Rx4 module fits 288-pin DIMM slots

16GB DDR4-2133 ECC Registered Server Memory

This 16GB DDR4 module runs at 2133 MHz with CL15 latency and 1.2V voltage. It features ECC Chipkill error correction and registered signal processing for data integrity. The dual-rank 2Rx4 organisation suits multi-channel server configurations. It targets administrators upgrading or repairing registered-DIMM platforms.

Thermals noise and power draw

Operating at the standard 1.2V DDR4 voltage keeps power draw low for dense server deployments. No heat spreader is fitted, so airflow across the bare PCB manages thermals. Registered buffering reduces electrical load on the memory controller. Silent passive cooling suits rack environments with controlled airflow.

ECC Chipkill and registered buffering

ECC Chipkill corrects multi-bit errors that standard ECC cannot handle, improving uptime. Registered signal processing stabilises command and address lines across full memory populations. The 288-pin DIMM form factor fits standard DDR4 server slots. Buyers needing unbuffered or non-ECC modules for workstations should look elsewhere.

Highlights

  • ECC Chipkill protects data integrity in critical workloads
  • Registered signal processing stabilises high-density server configurations
  • DDR4-2133 speed delivers 17000 MB/s bandwidth for demanding applications
  • CL15 latency at 1.2 V balances responsiveness with power efficiency
  • 16 GB dual-rank 2Rx4 module fits 288-pin DIMM slots

Specifications

BrandSK Hynix
SeriesECC-REG
ModelHMA42GR7MFR4N-TF
Capacity16GB
Type288-Pin DDR4 SDRAM
Speed2133
CAS Latency15
Voltage1.2V
ECCECC Chipkill
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitQuad Channel Kit
ChipsetMajor Brand Chipset
Heat SpreaderNo

Questions about this item

How do I install the 288-pin DDR4 DIMM and which notch orientation is the step people get wrong?

Align the single key notch on the 288-pin DDR4 DIMM with the slot’s matching tab; the notch is off-centre, so press straight down until both retention clips click — forcing it backwards bends pins.

What maintenance or replacement will the 16GB ECC Chipkill registered module need later?

No scheduled maintenance is required; if a correctable error rate climbs or the server logs uncorrectable errors, replace the affected 16GB module — dust the slots with compressed air during any chassis service.

What limit appears first on this 2133 MHz CL15 1.2 V dual-rank kit under sustained load?

The JEDEC 1.2 V voltage ceiling is reached before thermal throttling; sustained writes at 2133 MHz keep the DRAM at its rated voltage, so the power envelope is the first hard limit.

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