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Two green DDR2 DIMMs with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM512723200ECCREG2R4 8GB (2x4GB) DDR2 400MHz ECC Registered DIMM

SKU CH-WDC7-BK2N9

8GB DDR2 400MHz ECC registered dual-rank kit validated for Dell PowerEdge 1800 servers

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR2 400 (PC2 3200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL3
  • Memory timings3-3-3
  • Rated voltage1.8 V
  • ECC protection prevents data errors with registered DDR2 modules
  • 400 MHz DDR2 speed matches Dell PowerEdge 1800 specifications
  • 240-pin registered DIMM design ensures stable server operation
  • Dual-rank 2Rx4 organisation maximises 8 GB capacity in two modules
  • 8 V DDR2 voltage meets original Dell PowerEdge 1800 requirements

Dell PowerEdge 1800 memory kit

This kit supplies two 4 GB registered ECC DIMMs for a total of 8 GB. It is built for the Dell PowerEdge 1800 server and runs at DDR2 400 MHz with CL3 timing. The modules use 240-pin DDR2 SDRAM at 1.8 V and carry a 2Rx4 dual-rank organisation.

Compatibility checklist

Verify that your PowerEdge 1800 currently uses registered ECC DDR2 memory and that the motherboard accepts dual-rank 2Rx4 modules. The chipset supports a maximum of eight ranks, so confirm the existing rank count before adding this pair. The first DIMM slot can be populated alone, but any further memory must be installed in matched pairs.

Build integration

The two sticks populate adjacent slots to maintain the required paired configuration. Registered buffering reduces electrical load on the memory controller, allowing the full rank budget to be used. No heat spreader is fitted, so airflow through the server chassis provides the necessary cooling.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $2.25 per GB
Cheaper than about 93% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512723200ECCREG2R4
Total capacity8 GB (2 × 4 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 400 (PC2 3200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL3
Memory timings3-3-3
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Poweredge 1800
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the kit include only the two 4GB DIMMs or are extra brackets or cables required?

The package contains two 240-pin DDR2 registered ECC DIMMs and nothing else; no brackets, cables or additional parts are needed for installation.

Should I choose the 2Rx4 dual-rank version or look for a single-rank alternative for my Dell PowerEdge 1800?

This kit uses 2Rx4 dual-rank modules; the system board supports up to eight ranks total, so two dual-rank DIMMs consume four ranks and leave room for further paired upgrades.

What does the PC2-3200 400 MHz rating mean for actual throughput in the server?

Each module transfers data at the standard DDR2-400 rate with CL3 timing at 1.8 V, delivering the bandwidth the PowerEdge 1800 memory controller expects for registered ECC operation.

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