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Green 240-pin DDR3 DIMM with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1333 ECC memory upgrade CM5127210600ECCNRH2R8

SKU CH-WK5V-EFHB3

ECC DDR3 1333 module adds 4 GB to compatible Lenovo ThinkStation S20 workstations

  • Capacity4GB
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • ECC protection guards data integrity on Lenovo ThinkStation S20 workstations
  • 1333 MHz DDR3 speed matches system specification for stable operation
  • 4 GB module expands memory within 24 GB maximum across six slots
  • Unregistered 2Rx8 design installs directly without registered DIMM requirement
  • 5 V standard voltage ensures compatibility with supported Xeon configurations

System-specific ECC upgrade

This 4 GB DDR3 1333 module is built for the Lenovo ThinkStation S20 (X58) 4105, 4157 and 4217 series. It targets workstation owners who need error-correcting memory for data integrity in server-style workloads. The unregistered ECC design matches the platform's supported memory type. Buyers whose systems require registered ECC or non-ECC memory cannot use this kit.

Single-stick kit impact

The package contains one 240-pin DIMM rated at PC3 10600 with CL9 9-9-9 timing at 1.5 V. Adding a single stick increases capacity but does not enable triple-channel bandwidth; the platform needs three matching modules per bank for that mode. Maximum supported memory per socket is 4 GB across six sockets. Mixing this unbuffered ECC stick with registered ECC modules is not supported by the system.

Slot placement and clock behaviour

Install the module into an empty 240-pin slot; the system automatically clocks DDR3-1333 down to 1066 MHz or 800 MHz depending on the installed Xeon processor and total module count. No heat spreader is fitted, so clearance is minimal. The most common issue is populating slots without following the three-per-bank rule, which leaves the channel in single-channel mode and reduces throughput.

Puntos fuertes

  • ECC protection guards data integrity on Lenovo ThinkStation S20 workstations
  • 1333 MHz DDR3 speed matches system specification for stable operation
  • 4 GB module expands memory within 24 GB maximum across six slots
  • Unregistered 2Rx8 design installs directly without registered DIMM requirement
  • 5 V standard voltage ensures compatibility with supported Xeon configurations

Especificaciones

BrandComputer Memory Solutions
ModelCM5127210600ECCNRH2R8
Capacity4GB
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 SystemLenovo Thinkstation S20 (X58) 4105, 4157, 4217 Series
Package Content1Memory Ram Stick

Preguntas sobre este artículo

Will the 240-pin DDR3 ECC module need replacement if I later install a Xeon CPU that only supports 800 MHz memory?

The module automatically clocks down to 800 MHz or 1066 MHz depending on the Xeon model and number of modules installed, so it remains compatible without replacement.

What limits sustained throughput when I populate all six sockets for triple-channel mode?

The system maximum of 24 GB across six sockets caps total capacity, and modules must be installed in matched sets of three to maintain triple-channel bandwidth.

How much heat and power does the 1.5 V unregistered ECC DIMM produce when running continuously in a ThinkStation S20?

Operating at 1.5 V without a heat spreader, the module draws standard DDR3 power and relies on chassis airflow; no additional cooling is required for all-day operation.

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