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Two green 240-pin DDR2 DIMM sticks, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM128643200D2DIMM 2GB 2x1GB DDR2 400MHz CL3 memory upgrade

SKU CH-Q25J-2Z3C8

2GB kit of two 1GB DDR2 400MHz CL3 DIMMs built for Dell Dimension 4700 and 4700C 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
  • Guaranteed Dell Dimension 4700 compatibility for easy upgrade
  • 2GB dual-channel kit (2 x 1GB) boosts multitasking
  • DDR2 400MHz CL3 timing matches system specifications
  • Non-ECC unbuffered 240-pin DIMMs install without configuration
  • Major-brand chipset components ensure reliable operation

Target system

This is a 2 GB kit of DDR2 400 memory built for Dell Dimension 4700 and 4700C desktops. The kit contains two 1 GB unbuffered DIMMs that run at 1.8 V with CL3 timing. Each module uses a 240-pin DDR2 interface and a 2Rx8 chip organisation.

Who it suits

It suits owners of the listed Dell models who need to add or replace memory and want a matched pair that is guaranteed compatible. Builders working on other platforms, or anyone who requires ECC, registered modules, or a different DDR generation, should look elsewhere.

Deciding specification

The memory operates at DDR2 400 (PC2 3200) with a CAS latency of CL3. If the target system requires this exact speed and timing combination the kit will work; if the board needs a different DDR2 speed, a different latency or a newer DDR generation the modules will not be compatible.

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 4700, 4700C Series
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the 240-pin DDR2 DIMM fit the Dell Dimension 4700 and 4700C motherboard slots?

Yes, the 240-pin DDR2 DIMMs are designed for the four memory sockets in the Dell Dimension 4700 and 4700C series.

What is the correct way to install the two 1 GB modules so the system recognises the full 2 GB kit?

Insert each module firmly into a slot until the retaining clips click; the common mistake is not pressing hard enough to seat both ends.

Will the non-ECC unbuffered 1.8 V modules need any firmware updates or voltage adjustments later?

No, the CL3 400 MHz modules run at standard 1.8 V without ECC or buffering, so no firmware or voltage changes are required.

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