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Four green DDR4 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 64GB (4x16GB) DDR4 2666MHz CL19 1.2V DIMM memory upgrade

SKU CH-SNJX-7TPKC

A 64 GB kit of four 16 GB DDR4 2666 MHz CL19 unbuffered DIMMs validated for Supermicro SuperWorkstation 5039C-T and X11SCA series motherboards

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing for responsive operation
  • 2 V low voltage reduces power draw and heat
  • Validated for Supermicro SuperWorkstation 5039C-T and X11SCA series motherboards

System-Specific 64GB DDR4 Kit

This 64GB kit contains four 16GB unbuffered DIMMs built for the Supermicro SuperWorkstation 5039C-T and X11SCA-series motherboards. It is intended for professionals who need guaranteed compatibility without manual configuration.

2666MHz CL19 Capacity and Limits

The modules run at 2666MHz with CL19 timings and 1.2V, filling all four sockets to reach the platform's 128GB maximum. Performance scales to the slowest installed module or CPU capability, so mixing with slower sticks reduces speed.

288-Pin Unbuffered Build

Each stick uses a 288-pin DDR4 PCB without a heat spreader, relying on chassis airflow for cooling. The non-ECC, 2Rx8 layout suits workstation workloads that do not require error correction, and matched-pair installation is recommended for stability.

Points forts

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed rated at PC4 21300
  • CL19 latency with 19-19-19 timing for responsive operation
  • 2 V low voltage reduces power draw and heat
  • Validated for Supermicro SuperWorkstation 5039C-T and X11SCA series motherboards

Caractéristiques

BrandComputer Memory Solutions
ModelCM2048642666DIMM
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemSupermicro SuperWorkstation 5039C-T (Super X11SCA), X11SCA, X11SCA-F, X11SCA-W Motherboard
Package Content4 Memory RAM Sticks

Questions sur cet article

Will the 2666MHz CL19 modules down-clock to match older DDR4 sticks I keep in the Supermicro X11SCA motherboard?

Yes, all installed memory runs at the speed of the slowest module or the CPU limit, so older DDR4 DIMMs will set the operating frequency.

How can I confirm the 64GB kit is running at 2666MHz with CL19 timings after installation?

Check the BIOS memory information or a tool such as CPU-Z; it should report 2666MHz, 19-19-19 timings and 1.2V across all four slots.

Does the package contain only the four 16GB DIMMs or are heat spreaders and cables included?

The box holds four 288-pin DDR4 DIMMs; no heat spreaders, cables or extra accessories are supplied.

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