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Green circuit board with black memory chips, gold edge connector, no heat spreader

A-Tech

A-Tech 16GB DDR5 4800 ECC RDIMM 1Rx8 server RAM

SKU CH-KVDS-M1Q0Z

Registered ECC DDR5 RDIMM delivers 16 GB at 4800 MHz with 1.1 V operation

  • Capacity16GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS Latency40
  • Voltage1.10V
  • ECCYes
  • ECC protection guards data integrity in critical workloads
  • 4800 MT/s DDR5 speed accelerates server responsiveness
  • 16 GB capacity expands memory headroom for virtualization
  • 1Rx8 single-rank layout optimises channel efficiency
  • 10 V standard voltage reduces power draw per module

Server-Ready DDR5 ECC Module

This 16GB registered DIMM delivers DDR5 4800 speed with error-correcting code for data integrity. It runs at 1.10V with a CAS latency of 40 and uses a 1Rx8 rank layout. The module is a direct replacement for Hynix HMCG78A, HMCG78AEBRA115N and HMCG78AEBRA168N parts.

Fits 288-Pin Registered Slots

The 288-pin RDIMM form factor requires a server or workstation motherboard that supports registered DDR5 memory. Error correction is handled on the module, freeing the CPU from parity overhead. No heat spreader is fitted, so airflow across the PCB must be provided by the system chassis.

Replaces Hynix DDR5 4800 RDIMMs

Swapping out the listed Hynix modules restores original capacity and speed without firmware changes. The upgrade is worthwhile when ECC logs show correctable errors or when workloads exceed the current memory ceiling. Systems needing unbuffered DIMMs or a different voltage cannot use this module.

Points forts

  • ECC protection guards data integrity in critical workloads
  • 4800 MT/s DDR5 speed accelerates server responsiveness
  • 16 GB capacity expands memory headroom for virtualization
  • 1Rx8 single-rank layout optimises channel efficiency
  • 10 V standard voltage reduces power draw per module

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Hynix HMCG78A HMCG78AEBRA115N HMCG78AEBRA168N
ModelA-Tech 16GB DDR5-4800 ECC RDIMM Server RAM Module
Capacity16GB
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS Latency40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand DRAM IC Chips

Questions sur cet article

How does the CAS latency of 40 affect sustained throughput on this DDR5 4800 ECC RDIMM?

The CL40 timing is standard for DDR5 4800 registered modules; it sets the minimum delay between a read command and data availability, which under sustained loads becomes the primary latency floor for memory-bound workloads.

What thermal or power behaviour should I expect when this 1.10 V 1Rx8 module runs continuously in a populated server chassis?

Operating at the DDR5 standard 1.10 V without a heat spreader, the module relies on chassis airflow; power draw stays within JEDEC limits for 16 GB RDIMMs, so typical server cooling keeps temperatures in spec during all-day operation.

Which motherboard features must my system already provide for this 288-pin registered ECC DIMM to function?

The platform needs a DDR5 RDIMM slot with registered-buffer support, an ECC-capable memory controller, and a BIOS that recognises 1Rx8 organisation at 4800 MT/s.

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