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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 4GB DDR4 2133 ECC UDIMM 1Rx8 Server Memory Samsung M391A5143EB1-CPB

SKU CH-RYT9-2DE51

4 GB DDR4 2133 ECC unbuffered DIMM with CL15 latency and 1.2 V operation for server and workstation upgrades

  • Capacity4GB
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 4GB capacity expands server multitasking headroom
  • DDR4 2133 speed handles data-intensive workloads
  • ECC UDIMM protects critical data integrity
  • 1Rx8 single-rank layout ensures broad compatibility
  • 2V operation reduces system power draw

Server memory for ECC workloads

This 4 GB DDR4 2133 module is built for servers and workstations that require error-correcting unbuffered DIMMs. It runs at the standard 1.2 V with CL15 timing and uses a single-rank 1Rx8 layout. The 288-pin form factor fits DDR4 slots that accept ECC UDIMMs.

Suited for single-slot upgrades

Buyers adding capacity to a compatible platform with an open DIMM slot will find this module straightforward. Systems that need registered or load-reduced memory cannot use this unbuffered stick. Builds requiring higher density per slot or speeds beyond 2133 MT/s should look at other modules.

Simple press-in installation

Align the notch with the DDR4 key, press until the latches click, and the firmware will detect the new capacity on the next boot. The most common issue is mixing this unbuffered ECC stick with registered DIMMs or populating slots in an order the board does not support, which prevents the system from posting.

Puntos fuertes

  • 4GB capacity expands server multitasking headroom
  • DDR4 2133 speed handles data-intensive workloads
  • ECC UDIMM protects critical data integrity
  • 1Rx8 single-rank layout ensures broad compatibility
  • 2V operation reduces system power draw

Especificaciones

BrandA-Tech
Capacity4GB
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Preguntas sobre este artículo

Does my motherboard need DDR4 288-pin slots for this module?

Yes, this is a DDR4 UDIMM with a 288-pin form factor, so the board must provide DDR4 DIMM slots that accept unbuffered ECC memory.

Can I add this CL15 1.20 V stick to a system already running CL15 1.20 V DDR4 2133 ECC UDIMMs?

Mixing modules with identical speed, voltage, CAS latency, rank and ECC type usually works, but the motherboard will run all sticks at the slowest common settings.

How can I confirm the module is detected as 4 GB ECC at 2133 MT/s after installation?

Enter the BIOS or UEFI and check the memory information screen; it should show 4 GB, ECC enabled, and a data rate of 2133 MT/s.

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