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Green 288-pin DDR4 DIMM with black chips and gold contacts

SK hynix

SK hynix HMA82GR7MFR8N-UH 16GB DDR4-2400 ECC Registered CL17 Dual Rank Server RAM

SKU CH-23W7-SXSCS

16 GB DDR4-2400 ECC registered dual-rank server memory module at 1.2 V

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • ECCYes
  • Buffered/RegisteredRegistered
  • 16 GB capacity supports demanding server workloads
  • Registered design improves signal integrity for stable operation
  • ECC protection detects and corrects single-bit errors automatically
  • DDR4-2400 speed delivers 19200 MB/s peak bandwidth
  • Dual-rank organisation increases memory density per channel

Capacity and role

This 16 GB DDR4 module provides registered ECC memory for servers and workstations that require error correction and signal buffering. The dual-rank design allows higher density per slot while maintaining the CL17 latency rating at 2400 MT/s.

Thermals and power

Operating at the standard 1.2 V DDR4 voltage, the module draws low power and generates modest heat under typical server workloads. No active cooling is included, so airflow across the DIMM area should be maintained by the system chassis fans.

Build integration

The 288-pin registered DIMM fits DDR4 RDIMM slots that support registered memory; it will not work in unbuffered consumer platforms. Each module occupies a single slot, leaving remaining channels free for additional capacity up to the platform limit.

Highlights

  • 16 GB capacity supports demanding server workloads
  • Registered design improves signal integrity for stable operation
  • ECC protection detects and corrects single-bit errors automatically
  • DDR4-2400 speed delivers 19200 MB/s peak bandwidth
  • Dual-rank organisation increases memory density per channel

Specifications

BrandHynix
Part NumberHMA82GR7MFR8N-UH
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
ECCYes
Buffered/RegisteredRegistered

Questions about this item

How do I install the 288-pin DDR4 module and what step is often missed?

Align the notch with the motherboard key, press firmly until both retention clips click, then verify the registered buffer is recognised in BIOS — skipping the clip check leaves the module partially seated.

What maintenance or replacement will the 16GB dual-rank ECC module need later?

No routine maintenance is required; if a correctable error count rises, replace the DIMM — ECC extends usable life but cannot repair a failed DRAM chip.

What limit appears first under sustained load with the CL17 2400MHz registered memory?

The registered buffer adds one cycle of latency, so the CL17 timing ceiling is reached before bandwidth saturates, capping sustained throughput at the rated PC4-19200 level.

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