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Two green DDR3 ECC RDIMM modules with gold contacts, no heat spreaders

A-Tech

A-Tech 16GB Kit (2x8GB) DDR3-1600 ECC RDIMM 2Rx4 HP Z420 Z620 Z820

SKU CH-GQYP-V8E38

16 GB DDR3 ECC registered kit with two 8 GB modules for HP Z420, Z620 and Z820 workstations

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered

Capacity 16GB (2 x 8GB)

  • 16 GB ECC RDIMM kit for HP Z420 Z620 Z820
  • DDR3 1600 MHz CL11 registered memory with 2Rx4 organisation
  • 5 V 240-pin DIMM modules for stable server workloads
  • Two 8 GB modules tested for reliability and lifetime warranty
  • Designed specifically for second-generation HP Z workstations

HP Z Workstation Memory Upgrade

This 16 GB kit contains two 8 GB DDR3 registered DIMMs built for HP Z420, Z620 and Z820 workstations. It targets users who need error-correcting memory for stable operation in professional applications.

Registered ECC Modules for Quad-Channel Platforms

Each module is a 240-pin DDR3-1600 RDIMM running at 1.5 V with CL11 latency and a 2Rx4 organisation. The registered buffer reduces electrical load on the memory controller, allowing the workstation to populate all available slots. ECC circuitry detects and corrects single-bit errors without halting the system.

Replaces Slower or Smaller Factory Memory

The kit upgrades systems shipped with lower-capacity or slower DDR3 modules, raising total capacity to 16 GB and setting the memory bus to PC3-12800 speed. It is not suitable for platforms that require unbuffered ECC UDIMMs or non-ECC memory, and it cannot be mixed with those module types.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $1.81 per GB
Cheaper than about 94% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product line2nd Gen. HP Z Workstation Compatible
Model name16 GB (2 × 8 GB) 2Rx4 PC3-12800 RDIMM for HP Z Workstation Z420, Z620, Z820
Part numberNE-MS-0094
Total capacity16 GB (2 × 8 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP Z Workstation Z420, Z620, Z820
In the box
Included itemsTwo Modules
More details
VariantCompatible with HP Z Workstation Z420, Z620, Z820

Other versions of this model

5 more in the same range

Questions about this item

Does the dual-rank 2Rx4 organisation and 1.5 V voltage cap how far I can push sustained throughput on a Z420, Z620 or Z820?

The kit runs at DDR3-1600 CL11 with 2Rx4 registered ECC modules at 1.5 V; the workstation’s memory controller and BIOS set the practical sustained-throughput ceiling.

How much heat and noise should I expect when the two 8 GB RDIMMs run all day in a loaded workstation?

The modules have no heat spreader and draw 1.5 V at DDR3-1600; they add minimal heat and zero noise, relying on the chassis fans already present in the Z420, Z620 or Z820.

What must my HP Z workstation already have to accept this 240-pin DDR3 ECC RDIMM kit?

A Z420, Z620 or Z820 with free 240-pin DDR3 slots that support registered ECC memory and a BIOS configured for RDIMM operation.

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