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Two green DDR4 DIMM sticks with black chips, 288-pin

Computer Memory Solutions

Computer Memory Solutions CM1024722133ECCREG2R8 16GB (2 x 8GB) DDR4 2133MHz ECC Registered DIMM memory upgrade

SKU CH-0HG3-GV6J9

16GB dual-channel DDR4 kit with ECC registered DIMMs for HP Z640 workstations

  • Capacity16GB (2 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Timing15-15-15
  • Voltage1.2V
  • 16GB dual-channel kit boosts workstation throughput
  • ECC registered design protects data integrity in critical tasks
  • DDR4 2133MHz CL15 timing delivers responsive performance
  • 2V low-voltage operation reduces system power draw
  • Validated for HP Z640 workstations up to 128GB capacity

System-Specific DDR4 Kit for HP Z640

This 16 GB kit contains two 8 GB registered DIMMs built for the HP Z640 workstation. ECC and registered operation protect data integrity in server-grade workloads. The modules run at 1.2 V with CL15 timings at 2133 MHz.

Sustained Load Behaviour

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors without halting the system. Speed scales down to 1866 MHz when the installed processor limits the memory clock.

Upgrade Context

The kit adds 16 GB to the Z640's eight DIMM sockets, which support up to 128 GB of registered ECC memory. It is not for non-ECC platforms or consumer boards that cannot accept registered modules.

Highlights

  • 16GB dual-channel kit boosts workstation throughput
  • ECC registered design protects data integrity in critical tasks
  • DDR4 2133MHz CL15 timing delivers responsive performance
  • 2V low-voltage operation reduces system power draw
  • Validated for HP Z640 workstations up to 128GB capacity

Specifications

BrandComputer Memory Solutions
ModelCM1024722133ECCREG2R8
Capacity16GB (2 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Timing15-15-15
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderBased on Current Inventory (If Required Please Contact)
Compatible SystemHp/Compaq Workstation Z640
Package Content2 Memory RAM Sticks

Questions about this item

How much power does the 1.2V DDR4 2133MHz ECC registered kit draw during continuous operation?

Each module runs at 1.2V; total power depends on the Z640's memory controller and workload, so the kit itself has no separate power-draw rating.

What must the HP Z640 already have for these 288-pin registered DIMMs to function?

The workstation needs a processor that supports DDR4 ECC registered memory and free white DIMM slots for the first DIMM per channel.

Will the memory clock down to 1866MHz if my Z640 uses an 1866MHz-capable processor?

Yes — the processor determines the clock speed, so an 1866MHz CPU will limit the kit to 1866MHz operation.

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