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Three green DDR3 ECC memory modules, 240-pin DIMMs without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 12GB (3 x 4GB) DDR3 1333 ECC Unregistered Memory Upgrade - B81

SKU CH-461N-3956R

ECC unregistered DDR3 kit adds 12 GB across three 4 GB modules for HP Z-series workstations

  • Capacity12GB (3 x 4GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • ECC protection guards data integrity on supported HP workstations
  • Triple-channel 1333 MHz DDR3 kit boosts bandwidth across three slots
  • 12 GB total capacity expands memory for demanding workloads
  • Unregistered 1.5 V DIMMs install directly without buffer overhead
  • Guaranteed compatibility with Z200, Z210, Z400, Z600, Z800 systems

System-specific DDR3 ECC kit

Computer Memory Solutions supplies a 12 GB kit built from three 4 GB unregistered ECC DIMMs. Each module runs at DDR3-1333 with CL9 timings at 1.5 V. The 240-pin sticks are validated for HP Z200, Z210, Z400, Z600 and Z800 workstations.

Triple-channel population

The workstations use three memory channels per CPU, so the three-module kit fills one bank for interleaved bandwidth. Modules may be added one at a time, but peak throughput needs all three channels populated. DDR3-1333 parts automatically clock down to 1066 MHz or 800 MHz depending on the installed Xeon model and total module count.

Buyers restoring or expanding compatible HP

Shops upgrading supported Z-series systems with ECC unregistered memory will find the kit a direct fit. Builds that require registered DIMMs, capacities beyond 48 GB with two CPUs, or non-ECC consumer modules should look elsewhere.

Highlights

  • ECC protection guards data integrity on supported HP workstations
  • Triple-channel 1333 MHz DDR3 kit boosts bandwidth across three slots
  • 12 GB total capacity expands memory for demanding workloads
  • Unregistered 1.5 V DIMMs install directly without buffer overhead
  • Guaranteed compatibility with Z200, Z210, Z400, Z600, Z800 systems

Specifications

BrandComputer Memory Solutions
ModelCM5127210600ECCNRH2R8
Capacity12GB (3 x 4GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCYes
Buffered/RegisteredUnregistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp Workstation Z200, Z210, Z400, Z600, Z800
Package Content3 Memory RAM Sticks

Questions about this item

Will the 1333 MHz speed hold under sustained load?

The modules are rated DDR3-1333 (PC3-10600) with CL9 timing at 1.5 V. The system automatically clocks them down to 1066 MHz or 800 MHz depending on the Xeon model and number of modules installed.

How much heat and power should I expect from three 4 GB sticks running all day?

Each stick runs at 1.5 V without a heat spreader. Total capacity is 12 GB across three unregistered ECC DIMMs; power draw and thermals follow standard DDR3-1333 unbuffered specifications.

Which workstation must I already own for this kit to work?

The kit is guaranteed compatible with HP Workstation Z200, Z210, Z400, Z600 or Z800. Z600 systems require a C2-revision Intel 5520 chipset board for registered DIMMs, but these modules are unregistered ECC.

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