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Two green DDR2 DIMM sticks with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM128643200D2DIMM 2GB (2x1GB) DDR2 400MHz CL3 240-pin DIMM memory upgrade

SKU CH-R47K-4QQZB

Two 1 GB DDR2-400 CL3 modules totalling 2 GB for Dell Dimension 3100 and 3100C systems

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR2 400 (PC2 3200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL3
  • Memory timings3-3-3
  • Rated voltage1.8 V
  • 2GB dual-channel kit doubles system memory capacity
  • DDR2 400MHz CL3 timing matches Dell Dimension 3100 specs
  • 240-pin unbuffered non-ECC design fits factory DIMM slots
  • 8V operation with 3-3-3 latency ensures stable performance
  • Guaranteed compatible with Dell Dimension 3100 and 3100C series

Dell Dimension 3100 upgrade kit

This 2GB kit contains two 1GB unbuffered DDR2 DIMMs built for the Dell Dimension 3100 and 3100C series. Each module runs at 400 MHz with CL3 timing and 1.8 V voltage. The kit uses major-brand chips in a 2Rx8 configuration and installs directly into the two available sockets.

Owners of Dimension 3100 or 3100C desktops

The modules match the exact density and pin layout required by these systems, so installation is straightforward. Buyers needing ECC or registered memory for a server or workstation should look elsewhere. Systems that require a different DDR generation or a higher maximum capacity than 2GB are not supported by this kit.

DDR2 400 CL3 240-pin specification

The decisive specification is the DDR2 400 (PC2-3200) CL3 240-pin DIMM standard. Only boards designed for this exact speed, latency and pin count will accept the modules. Verify that the target system lists DDR2 400 support before purchasing.

How it compares

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

Price $14.99
Cheaper than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB (2 × 1 GB)
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM128643200D2DIMM
Total capacity2 GB (2 × 1 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 400 (PC2 3200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL3
Memory timings3-3-3
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Dimension 3100, 3100C Series
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the kit contain two 1 GB DDR2 DIMMs or do I need to buy a second stick separately?

The package includes two 1 GB DDR2 400 MHz CL3 240-pin DIMMs, giving the full 2 GB kit in one box.

Should I choose this DDR2 400 MHz CL3 kit or a faster DDR2 module for my Dell Dimension 3100?

The Dell Dimension 3100 and 3100C are specified for DDR2 400 (PC2 3200) CL3, so this kit matches the board's native speed and latency.

What does the PC2 3200 400 MHz rating mean once the memory is installed in the Dimension 3100?

The modules will run at 400 MHz with 3-3-3 timings at 1.8 V, delivering the maximum bandwidth the chipset supports.

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