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Green 288-pin DDR4 DIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR4 2133 ECC RDIMM 1Rx8 CL15 1.2V Server RAM

SKU CH-EEEV-79YD8

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

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection safeguards data integrity in critical workloads
  • Registered design reduces electrical load for stable server operation
  • DDR4 2133 MHz speed delivers PC4-17000 bandwidth for responsive performance
  • 2 V standard voltage lowers power draw and heat output
  • 288-pin DIMM form factor fits compatible HP server platforms

A-Tech 4GB DDR4 2133 ECC RDIMM

This 4GB DDR4 2133 ECC registered DIMM is built for server and workstation systems that require error-correcting memory. It operates at 1.2V with CL15 latency and uses a 1Rx8 rank configuration. The module fits 288-pin DDR4 slots and is validated as a replacement for specific HP part numbers.

DDR4 2133 registered DIMM limits

Registered DIMMs add a clock cycle of buffering, which stabilises heavy loads but prevents use in most consumer desktop boards that expect unbuffered modules. The DDR4 2133 speed caps bandwidth at PC4-17000, so faster CPUs or chipsets will downclock to this rate. ECC function only activates when the platform firmware enables it.

Installing a single 288-pin RDIMM

Align the notch on the 288-pin module with the slot key, press firmly until both latches click, and verify the system POSTs with the new capacity shown. Common issues include mixing registered and unbuffered DIMMs, populating slots in the wrong order for the memory controller, or leaving ECC disabled in BIOS so the extra parity bits are ignored.

How it compares

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

Price $19.99
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 $5.00 per GB
Cheaper than about 73% 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

Should I pick a single 4 GB module or combine multiple sticks?

Each module is 4 GB, so start with one stick and add identical 4 GB DDR4 2133 ECC RDIMM 1Rx8 units to reach your server’s target capacity.

What does the 2133 MHz rating deliver inside a server?

The module runs at DDR4 2133 MHz (PC4-17000) with CL15 latency, giving standard DDR4 bandwidth and registered ECC stability for supported platforms.

How does the 288-pin DDR4 RDIMM interface limit speed and capacity?

The 288-pin registered DIMM slot caps operation at DDR4 2133 MHz and 1.2 V; total capacity depends on how many slots your motherboard provides.

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