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Green rectangular DDR4 memory module with gold contacts and black chips

SK hynix

SK hynix HMA84GR7AFR4N-VK 32 GB DDR4 2666 ECC RDIMM

SKU CH-J6RX-VJVFP

32 GB DDR4 2666 ECC registered DIMM for Dell PowerEdge R740xd2 and compatible servers

  • Capacity32GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 32 GB DDR4 2666 capacity handles heavy server workloads
  • ECC registered design detects and corrects memory errors
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM fits Dell PowerEdge R740xd2 and listed systems
  • Dual-rank 2Rx4 organisation increases memory density per slot

32 GB DDR4 ECC RDIMM for Dell PowerEdge R740xd2

This 32 GB DDR4 2666 module is built for Dell PowerEdge R740xd2 servers and compatible Precision workstations. It delivers registered ECC operation at 1.2 V for data integrity in multi-socket platforms.

288-pin registered dual-rank design with CL19 timing

The stick uses a 288-pin RDIMM form factor with 2Rx4 organisation and CL19 latency. Registered buffering reduces electrical load on the memory controller, allowing larger populations per channel in supported Dell and HPE systems.

Verify your platform requires DDR4 RDIMM before

This module cannot be mixed with UDIMM or LRDIMM types in the same server. Confirm the target system lists DDR4 2666 registered ECC memory in its qualified vendor list and that free 288-pin slots are available.

Punti di forza

  • 32 GB DDR4 2666 capacity handles heavy server workloads
  • ECC registered design detects and corrects memory errors
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM fits Dell PowerEdge R740xd2 and listed systems
  • Dual-rank 2Rx4 organisation increases memory density per slot

Caratteristiche tecniche

BrandSK hynix inc.
SeriesServer Memory
ModelHMA84GR7AFR4N-VK & MEM-DR432L-HL01-ER26
Capacity32GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Compatible SystemDell SNPTN78YC/32G A9781929 PowerEdge R740xd2
FeaturesThis product is compatible with the following systems:
Precision Workstation T5810 XL
Precision Workstation T5810
PowerEdge R630
PowerEdge R730
PowerEdge R730XD
PowerEdge T630
PowerEdge R430
PowerEdge R530
PowerEdge T430
PowerEdge M630
PowerEdge C4130
PowerEdge FC630
PowerEdge FC430
PowerEdge FC830
PowerEdge M830
PowerEdge R930
Poweredge R830
PowerEdge R640
PowerEdge R740
PowerEdge R940
PowerEdge R740XD
PowerEdge C6420
Precision Workstation 7820 Tower
Precision Workstation T7820XL Tower
Precision Workstation T7820XL Tower
Precision Workstation 7820 Tower
PowerEdge R440
PowerEdge T640

Domande su questo articolo

What speed does the DDR4-2666 interface actually run at in this module?

The module operates at 2666 MT/s, labelled PC4-21300, with a CAS latency of CL19 at 1.2 V.

Will the 288-pin registered DIMM fit my Dell PowerEdge R740xd2 memory slots?

Yes — it is a 288-pin DDR4 RDIMM measuring 133 mm long, 30 mm high and 3 mm thick, matching the R740xd2 slot layout.

What is the correct way to seat this 2Rx4 ECC RDIMM and what step do people often miss?

Align the notch with the slot key, press straight down until both side latches click, and verify the module sits evenly; the common mistake is stopping before the latches engage fully.

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