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Green rectangular circuit board with gold edge connectors and black memory chips

A-Tech

A-Tech 8GB DDR4 2133MHz ECC RDIMM 2Rx8 CL15 1.2V Server Memory

SKU CH-8NGR-ZDKX9

8GB DDR4 2133MHz ECC RDIMM 2Rx8 CL15 1.2V server module tested for HP 759934-B21, 762200-081 and 807817-B21 compatibility

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption with built-in error correction
  • Registered design improves signal integrity for stable server operation
  • 8 GB capacity expands memory headroom for demanding workloads
  • DDR4 2133 MHz speed delivers PC4-17000 bandwidth at CL15 latency
  • 2 V standard voltage reduces power draw and heat output

8GB DDR4 2133MHz ECC RDIMM for servers

This 8GB DDR4 2133MHz ECC RDIMM module uses a 2Rx8 registered design and runs at 1.2V. It targets administrators who need to expand memory in compatible HP server or workstation platforms that require registered ECC DIMMs. The single stick adds capacity without occupying additional slots.

Registered DIMM slot with DDR4 2133 support

The module fits a standard 288-pin DDR4 RDIMM slot and operates at PC4-17000 speed with CL15 latency. Because it is registered, the memory controller must support buffered modules; unbuffered consumer boards will not accept it. ECC functionality depends on platform support for error-correcting code.

Replaces HP 759934-B21, 759934-S21, 762200-081.

This stick serves as a direct replacement for the listed HP part numbers when a system requires an 8GB 2Rx8 registered module at 2133MHz. The upgrade is worthwhile when the platform supports DDR4 RDIMM and the workload benefits from additional ECC capacity.

How it compares

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

Price $34.99
Cheaper than about 89% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $4.37 per GB
Cheaper than about 78% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity8 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

How many ranks does the 8 GB DDR4 2133 MHz module present to the memory controller?

The module is organised as 2Rx8, meaning two ranks of eight-bit wide chips.

What is the typical operating voltage and resulting heat output when the RDIMM runs continuously in a server?

It operates at the standard DDR4 voltage of 1.20 V, so power draw and heat stay low during all-day workloads.

Which slot type and pin count must the motherboard provide for this registered DIMM to seat correctly?

The board needs a 288-pin DDR4 DIMM slot that supports registered ECC memory.

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