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Two green DDR4 DIMM sticks, gold contacts, black chips

Computer Memory Solutions

Computer Memory Solutions CM4096722666ECCR 64GB (2x32GB) DDR4 2666 ECC Registered DIMM

SKU CH-1NTJ-NVNZ4

A 64 GB DDR4-2666 ECC registered dual-rank kit of two 32 GB DIMMs validated for Lenovo ThinkStation P520 and P720 workstations

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 64 GB capacity with two 32 GB modules for heavy workloads
  • ECC registered design detects and corrects single-bit errors automatically
  • DDR4 2666 MHz speed rated at PC4 21300 bandwidth
  • CL19 19-19-19 timing at 1.2 V for stable operation
  • Validated for Lenovo ThinkStation P520 and P720 workstations

64 GB DDR4-2666 ECC Registered Kit

This 64 GB kit contains two 32 GB DDR4-2666 ECC registered DIMMs built for Lenovo ThinkStation P520 and P720 workstations. The modules run at 1.2 V with CL19 timings and a 2Rx8 organisation. Registered buffering and ECC protect data integrity in multi-socket server workloads.

Upgrade from non-ECC or lower-capacity DIMMs

The kit replaces unbuffered or smaller registered modules when the platform demands ECC and registered signalling. It is validated for 2nd Generation Xeon Scalable x2xx Series processors and supports system maximums of 128 GB, 256 GB or 512 GB across 4 or 8 sockets per processor. Mixing registered with load-reduced DIMMs or combining different memory types in the same system is not supported.

Sustained load behaviour in multi-socket configs

Under continuous utilisation the registered interface reduces electrical load on the memory controller, allowing all 24 DIMM sockets to be populated with two processors installed. Faster-rated modules automatically clock down to the processor’s supported 2666 MT/s rate. Performance scales with matched-pair installation and a 64-bit operating system.

Punti di forza

  • 64 GB capacity with two 32 GB modules for heavy workloads
  • ECC registered design detects and corrects single-bit errors automatically
  • DDR4 2666 MHz speed rated at PC4 21300 bandwidth
  • CL19 19-19-19 timing at 1.2 V for stable operation
  • Validated for Lenovo ThinkStation P520 and P720 workstations

Caratteristiche tecniche

BrandComputer Memory Solutions
ModelCM4096722666ECCR
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderBased on Current Inventory (If Required Please Contact)
Compatible SystemLenovo ThinkStation P520, ThinkStation P720
Package Content2 Memory RAM Sticks

Domande su questo articolo

Will these 288-pin DDR4 DIMMs fit the four or eight memory sockets in my ThinkStation P520 or P720?

Yes, each module uses the standard 288-pin DDR4 form factor that matches the four or eight DIMM sockets available in those workstations.

What is the correct order for installing the two 32 GB sticks so the system runs in dual-channel mode?

Populate the two modules in matched-pair slots — typically the first socket of each channel — as shown in the workstation service guide; installing them in adjacent slots on the same channel will limit bandwidth.

If I later add more memory, can I mix these registered ECC modules with unbuffered or load-reduced DIMMs?

No, the platform requires all installed modules to be registered ECC RDIMMs; mixing registered, unbuffered or LRDIMM types in the same system is not supported.

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