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Two green DDR4 DIMM sticks, black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM2048722400ECCR 32GB (2x16GB) DDR4 2400 ECC Registered DIMM memory upgrade

SKU CH-5RC2-QH8G1

32 GB dual-channel DDR4 kit with two 16 GB registered ECC DIMMs rated at 2400 MHz CL17 for the HP Z640 workstation

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Timing17-17-17
  • Voltage1.2V
  • 32 GB total capacity from a matched 2 × 16 GB kit
  • ECC registered operation protects data integrity in server workloads
  • DDR4 2400 MHz speed rated at PC4-19200 for high throughput
  • Guaranteed compatibility with HP Workstation Z640 memory architecture
  • Low 1.2 V voltage reduces power draw and heat

System-specific DDR4 upgrade

This 32 GB kit contains two 16 GB registered DIMMs built for the HP Z640 workstation. Each module runs at 2400 MHz with CL17 timings at 1.2 V and includes ECC error correction. The registered design suits server-class motherboards that require buffered memory.

Thermals and power in use

Operating at the standard 1.2 V DDR4 voltage keeps power draw low and heat output minimal. No heat spreader is fitted, so airflow across the bare PCB is sufficient for typical workstation loads. Registered buffers add negligible latency while maintaining signal integrity across all populated slots.

Registered ECC requirement

The motherboard must accept registered ECC DDR4 DIMMs; consumer unbuffered or non-ECC modules will not work. Maximum supported capacity is 256 GB, and actual clock speed depends on the installed processor — some CPUs limit the bus to 1866 MHz. Buyers needing unbuffered memory or higher frequencies should choose a different product.

Punti di forza

  • 32 GB total capacity from a matched 2 × 16 GB kit
  • ECC registered operation protects data integrity in server workloads
  • DDR4 2400 MHz speed rated at PC4-19200 for high throughput
  • Guaranteed compatibility with HP Workstation Z640 memory architecture
  • Low 1.2 V voltage reduces power draw and heat

Caratteristiche tecniche

BrandComputer Memory Solutions
ModelCM2048722400ECCR
Capacity32GB (2 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Timing17-17-17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp/Compaq Workstation Z640
Package Content2 Memory RAM Sticks

Domande su questo articolo

How do I install the 288-pin DDR4 DIMMs in the HP Z640 and which slot do people often miss?

Populate the white DIMM slots first — one per channel — as shown in the Z640 service guide; the white slots mark the first slot of each channel and are the ones installers most often skip.

What maintenance or replacement will this registered ECC kit need over time?

No periodic maintenance is required; the modules carry a limited lifetime warranty from Computer Memory Solutions, so replacement would only occur if a stick fails.

What speed limit appears first under sustained load with a 1866 MHz-capable processor?

The memory will clock down to 1866 MHz when the installed processor only supports that speed, regardless of the 2400 MHz rating.

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