We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR3 ECC registered DIMMs with gold contacts, no heat spreaders

A-Tech

A-Tech 32GB (2x16GB) DDR3 1600 ECC RDIMM 2Rx4 1.5V 240-Pin for HP Z420 Z620 Z820

SKU CH-F59R-WQ57V

DDR3 1600 ECC registered 32GB kit with two 16GB 2Rx4 modules for HP Z420, Z620 and Z820 workstations

  • Capacity32GB (2 x 16GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.50V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • 32 GB ECC registered kit protects data integrity on HP Z workstations
  • DDR3 1600 MHz PC3-12800 speed matches system specification
  • 2Rx4 dual-rank organisation maximises capacity per channel
  • 5 V operation matches original platform voltage
  • 240-pin DIMM form factor fits Z420 Z620 Z820 slots

HP Z420 Z620 Z820 Memory Kit

This 32GB kit contains two 16GB DDR3 1600 ECC registered DIMMs built for second-generation HP Z workstations. The modules run at 1.5V with CL11 latency and a 2Rx4 organisation. They are designed to install directly into Z420, Z620 and Z820 systems.

Upgrade from smaller or slower DDR3 sets

Replacing lower-capacity or slower DDR3 modules with this kit raises the ceiling for multi-threaded workloads and large datasets. The jump is worth it when the workstation currently limits concurrent tasks or forces frequent paging to disk.

Installation follows the system manual

Seat the two 240-pin RDIMMs in the slots specified by the HP service guide for the correct channel population. The most common issue is mixing these registered modules with unbuffered ECC DIMMs, which the platform does not support.

Highlights

  • 32 GB ECC registered kit protects data integrity on HP Z workstations
  • DDR3 1600 MHz PC3-12800 speed matches system specification
  • 2Rx4 dual-rank organisation maximises capacity per channel
  • 5 V operation matches original platform voltage
  • 240-pin DIMM form factor fits Z420 Z620 Z820 slots

Specifications

BrandA-Tech
Series2nd Gen. HP Z Workstation Compatible
Model32GB (2x16GB) 2Rx4 PC3-12800 RDIMM for HP Z Workstation Z420, Z620, Z820
Part NumberNE-MS-0095
Capacity32GB (2 x 16GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHP Z Workstation Z420, Z620, Z820
OptionCompatible with HP Z Workstation Z420, Z620, Z820
FeaturesDesigned for HP Z Workstation Z420, Z620, Z820
Package ContentTwo Modules

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will these 240-pin DDR3 DIMMs fit the memory slots in an HP Z420, Z620 or Z820 workstation?

Yes. The kit is built to the 240-pin DDR3 DIMM form factor used by all three workstation models.

What is the correct way to install the two 16 GB modules so the system recognises the full 32 GB?

Follow the workstation manual for channel population order; the registered ECC modules must go in the prescribed slots and cannot be mixed with unbuffered ECC memory.

Does the lack of a heat spreader on these 1.5 V modules mean I will need to add cooling later?

No extra cooling is required; the modules run at the standard 1.5 V DDR3 voltage without a spreader and are designed for the workstation's existing airflow.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.