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Two green 240-pin DDR3 DIMMs with black chips, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM5127210600ECCR2R4H 8GB (2x4GB) DDR3-1333 ECC Registered DIMM

SKU CH-X2CC-9ZJ6P

Eight-gigabyte registered ECC DDR3 kit with two 4GB modules at 1333 MHz for Intel S3420 servers

  • Capacity8GB (2 x 4GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • ECC protection guards server data integrity
  • Registered design stabilises multi-DIMM operation
  • 1333 MHz DDR3 speed matches platform spec
  • Dual-rank 2Rx4 organisation fits supported configs
  • Two 4 GB modules enable dual-channel mode

Server ECC Registered DIMM Kit

This 8GB kit provides two 4GB DDR3-1333 registered ECC modules built for Intel S3420GP series servers. The CL9 1.5V DIMMs use a 2Rx4 organisation and 240-pin form factor. They are designed for systems that require registered memory with error correction.

Registered DDR3 Speed Limits

Registered ECC DIMMs operate at 1333MHz when two or four modules are installed, dropping to 800MHz with six DIMMs populated. Quad-rank registered DIMMs run at 1066MHz with two modules and 800MHz with four. Unbuffered ECC DIMMs are limited to four sockets and cannot fill the last bank.

Upgrade From Unbuffered Or Smaller Kits

This registered kit replaces unbuffered ECC memory when the platform demands registered modules for larger capacities. The jump is worth it when moving beyond four DIMM slots or targeting the 32GB maximum using quad-rank RDIMMs. Core i3 systems cannot use these registered DIMMs.

Highlights

  • ECC protection guards server data integrity
  • Registered design stabilises multi-DIMM operation
  • 1333 MHz DDR3 speed matches platform spec
  • Dual-rank 2Rx4 organisation fits supported configs
  • Two 4 GB modules enable dual-channel mode

Specifications

BrandComputer Memory Solutions
ModelCM5127210600ECCR2R4H
Capacity8GB (2 x 4GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemIntel S3420Gplc, S3420Gplx, S3420Gprx
Package Content2 Memory RAM Sticks

Questions about this item

Should I choose the 8 GB kit or a larger capacity for my Intel S3420 server?

This kit provides 8 GB as two 4 GB modules. The Intel S3420 platform supports up to 16 GB with four 4 GB ECC UDIMMs or 32 GB with four 8 GB quad-rank RDIMMs across six sockets.

What does the DDR3‑1333 rating deliver in an Intel S3420 system?

Registered ECC DIMMs run at 1333 MHz with two or four modules installed. If all six sockets are populated the speed drops to 800 MHz.

How does the 240‑pin registered ECC interface affect compatibility?

The modules are 240‑pin DDR3 registered ECC (2Rx4, CL9, 1.5 V). They are compatible with Intel S3420GPLC, S3420GPLX and S3420GPRX servers that accept registered ECC memory; Core i3 processors require unbuffered ECC only.

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