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Two green DDR2 DIMM sticks, 240 pins, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM256646400DIMMDR 4GB 2x2GB DDR2 800 CL6

SKU CH-E75K-1N8TG

Two-module 4GB DDR2 kit rated at 800 MHz CL6 for select Intel motherboards

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 4GB kit upgrades compatible Intel boards
  • Dual-channel 2x2GB layout boosts throughput
  • DDR2-800 CL6 timing matches spec
  • 8V unbuffered DIMMs install without config
  • 240-pin non-ECC design fits listed sockets

System-specific DDR2 kit

This 4GB kit from Computer Memory Solutions contains two 2GB modules built for Intel D946GZAB, D946GZIS, D975XBX2 and DB43LD motherboards. It runs at DDR2 800 (PC2 6400) with CL6 6-6-6 timings at 1.8V. The unbuffered non-ECC DIMMs use a 240-pin layout and major-brand chips.

Upgrade path for legacy Intel boards

Owners of the listed Intel desktop boards who need to reach the 8GB maximum across four slots can use this matched pair. Builders working with any other chipset, laptop, server or later DDR generation should look elsewhere because the pin-out, voltage and timing are specific to these platforms.

240-pin DDR2 800 interface

The decisive specification is the 240-pin DDR2 800 interface; only motherboards that accept PC2 6400 unbuffered non-ECC DIMMs at 1.8V will recognise and run these modules correctly.

How it compares

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

Price $18.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 80% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256646400DIMMDR
Total capacity4 GB (2 × 2 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 800 (PC2 6400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL6
Memory timings6-6-6
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsIntel D946Gzab, D946Gzis D975Xbx2, Db43Ld Motherboard
In the box
Included items2 Memory RAM Sticks

Questions about this item

What speed does the DDR2 800 interface actually run at in this kit?

The two 2 GB modules are rated for 800 MHz DDR2, which is the PC2-6400 data rate.

Will these 240-pin DIMMs fit the four slots on an Intel D946GZIS board?

Yes, each stick is a standard 240-pin unbuffered DDR2 DIMM and the board has four such sockets.

Do I need to change any BIOS settings after installing the pair, or is it plug-and-play at 1.8 V?

The kit runs at the standard 1.8 V DDR2 voltage, so most boards will detect the correct 6-6-6 timings automatically.

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