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Green 288-pin DDR4 RDIMM module, black chips, gold contacts

A-Tech

A-Tech 4GB DDR4 2133 ECC RDIMM 1Rx8 IBM-Lenovo 46W0784 4X70F28588 4X70G78060 server RAM

SKU CH-K37P-4CZTF

4GB DDR4 2133 ECC registered DIMM for IBM-Lenovo servers, CL15 at 1.2V

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption with registered DDR4 technology
  • 2133 MHz speed handles demanding server workloads at PC4-17000 bandwidth
  • 2 V operation reduces power draw and heat in dense configurations
  • Single-rank 1Rx8 layout optimises signal integrity for stable performance
  • 288-pin DIMM form factor fits IBM-Lenovo 46W0784, 4X70F28588, 4X70G78060 systems

Capacity and purpose

This 4GB DDR4 ECC registered DIMM adds a single memory module to IBM-Lenovo servers that require the 46W0784, 4X70F28588 or 4X70G78060 part numbers. It suits administrators who need a modest capacity increase for virtualisation hosts or database nodes. Buyers who want more storage or non-ECC memory for desktop boards should look elsewhere.

Sustained operation

Registered buffering and ECC protect data integrity during continuous workloads such as batch processing or long-running compute jobs. The CL15 timing at 2133 MHz and standard 1.20 V voltage deliver stable throughput without excessive heat buildup. Systems that demand higher frequencies or lower latencies will not reach those targets with this module.

Build and connectors

The 288-pin DIMM uses major-brand chips on a registered PCB, ensuring reliable seating in server memory slots. Its single-rank 1Rx8 organisation leaves additional channels open for future expansion. Installers must verify the platform's qualified-vendor list, as unlisted motherboards may not initialise the module.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 95% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Power
Rated voltage1.2 V

Questions about this item

How much heat and power does the 1.20 V DDR4 2133 RDIMM draw when the server runs all day?

At the standard 1.20 V DDR4 voltage this 4 GB registered module draws minimal power and produces little extra heat, so it fits normal server cooling without special airflow changes.

What must my system already have to accept this 288-pin ECC RDIMM?

A server or workstation motherboard with DDR4 RDIMM slots that supports ECC registered memory and can run at 2133 MHz PC4-17000 CL15.

Will this 1Rx8 module work alongside older 2Rx4 or 2Rx8 DDR4 RDIMMs I keep in the same chassis?

Yes, provided the platform allows mixed-rank populations; the 1Rx8 organisation is compatible with common dual-rank DDR4 RDIMMs when the memory controller permits it.

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