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Two green 240-pin DDR2 DIMM sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 667 PC2-5300 CL5 240-pin DIMM memory upgrade

SKU CH-K7KH-W5NEJ

A 4 GB DDR2 kit with two 2 GB DIMMs running at 667 MHz CL5 for Asus P5GC‑MX motherboards

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 4GB dual-channel kit boosts system responsiveness
  • DDR2-667 CL5 timing matches motherboard specifications
  • 8 V operation reduces power draw and heat
  • Unbuffered non-ECC design fits standard desktop DIMM slots
  • Tested compatible with Asus P5GC-MX series motherboards

DDR2 667 kit for Asus P5GC-MX boards

This 4 GB kit contains two 2 GB DDR2 667 DIMMs built for the Asus P5GC-MX 1333 and P5GC-MX GBL motherboards. It uses unbuffered, non-ECC modules rated at CL5 5-5-5 timing and 1.8 V. The kit targets owners of those specific boards who need to reach the platform's 4 GB maximum. It is not suited for systems that require ECC, registered memory or a different DDR generation.

DDR2 667 speed ceiling and density limits

The DDR2 667 interface caps transfer rates at the PC2-5300 level, so bandwidth cannot exceed that standard. Each DIMM carries 2 GB in a 2Rx8 organisation, and the board provides only two sockets, fixing the absolute ceiling at 4 GB. Buyers who want more storage or faster memory than DDR2 667 provides cannot use this kit to overcome those limits.

Straightforward two-slot installation

Installation consists of seating both 240-pin modules into the board's two DIMM slots until the retention clips engage. The usual mistake is inserting only one stick and leaving the second slot empty, which halves the capacity. Another common error is forcing a module in the wrong orientation, which can damage the slot or the DIMM's edge connector.

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 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256645300DIMMDR
Total capacity4 GB (2 × 2 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsAsus/Asmobile P5 Motherboard P5Gc-Mx 1333, P5Gc-Mx GBl
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I choose the 4GB kit or a single 2GB module?

The 4GB kit provides two matched 2GB modules for dual-channel operation on the two-slot Asus P5GC-MX boards, while a single module would run in single-channel mode and leave one slot empty.

What does the PC2-5300 rating mean once installed?

PC2-5300 indicates a maximum data rate of 5300 MB/s at 667 MHz; the motherboard chipset and CPU memory controller will determine the actual throughput achieved in your system.

What does the 240-pin DDR2 interface cap in practice?

The 240-pin DDR2 interface is limited to the 667 MHz / PC2-5300 speed grade and 1.8 V operation; it cannot run at higher DDR2 speeds or any later DDR generation.

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