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Green 240-pin DDR3 DIMM with black chips and silver label

A-Tech

A-Tech 16GB DDR3 1066 ECC RDIMM 4Rx4 Server Memory

SKU CH-9GJS-N4DHD

16 GB DDR3 1066 ECC registered DIMM for server and workstation upgrades

  • Capacity16GB
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL3
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 16 GB capacity expands server memory headroom for larger workloads
  • DDR3 1066 MHz speed matches PC3-8500 system bus timing
  • ECC RDIMM design corrects single-bit errors to protect data integrity
  • 4Rx4 rank organisation fits high-density registered DIMM slots
  • 5 V standard voltage ensures compatibility with DDR3 server platforms

Server Memory Upgrade

This 16GB DDR3 1066 MHz registered ECC module is built for servers and workstations that require error-correcting memory. It replaces Samsung M393B2K70BM1-CF8Q1 and M393B2K70DM0-CF8Q8 parts in compatible systems. The single 240-pin DIMM operates at standard 1.5V voltage with CL3 latency. It is not for desktop boards that only accept unbuffered non-ECC memory.

Thermals and Power Draw

The module runs at the standard DDR3 voltage of 1.50V, keeping power draw consistent with original server specifications. Registered buffering reduces electrical load on the memory controller during heavy workloads. ECC circuitry adds minimal overhead while correcting single-bit errors automatically. No active cooling is required beyond normal chassis airflow in a server enclosure.

Build and Connectors

The 240-pin DIMM uses a 4Rx4 organisation with Samsung chipset components for broad compatibility. Registered design ensures signal integrity in multi-module configurations typical of server platforms. Physical keying prevents insertion into incompatible consumer slots. Verify your system supports 16GB registered DDR3 modules before purchase as capacity limits vary by platform.

Points forts

  • 16 GB capacity expands server memory headroom for larger workloads
  • DDR3 1066 MHz speed matches PC3-8500 system bus timing
  • ECC RDIMM design corrects single-bit errors to protect data integrity
  • 4Rx4 rank organisation fits high-density registered DIMM slots
  • 5 V standard voltage ensures compatibility with DDR3 server platforms

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Samsung
ModelM393B2K70BM1-CF8Q1, M393B2K70DM0-CF8Q8
Capacity16GB
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL3
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetSamsung Chipset
FeaturesM393B2K70BM1-CF8Q1, M393B2K70DM0-CF8Q8

Questions sur cet article

How do I install the 240-pin DDR3 RDIMM and which orientation step is often missed?

Align the notch on the module with the key in the 240-pin slot, press straight down until both side clips click, and confirm the retention tabs lock fully — partial seating is the common error.

What maintenance or replacement will this 16GB ECC RDIMM need over time?

No routine maintenance is required; the module either passes POST or it fails, in which case the entire 16GB stick is replaced rather than repaired.

What limit appears first when this 1066MHz registered memory runs sustained workloads?

The 1.50V DDR3 voltage ceiling and CL3 latency bound throughput before thermal throttling becomes a factor.

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