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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR2 800MHz CL6 1.8V 240-pin DIMM Kit

SKU CH-0W5E-7AW7J

8GB dual-channel DDR2 kit with two 4GB 800MHz CL6 unbuffered DIMMs validated for Asus P5Q Premium and P5Q Pro motherboards

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 8GB dual-channel kit doubles usable bandwidth
  • CL6 timing at 800 MHz cuts latency
  • 8 V DDR2 modules reduce power draw
  • Tested for ASUS P5Q Premium and P5Q Pro
  • 240-pin unbuffered DIMMs install in matched pairs

Targeted DDR2 upgrade kit

This 8 GB kit supplies two matched 4 GB DDR2 modules rated at 800 MHz with CL6 timings and 1.8 V operation. It is built for owners of Asus P5Q Premium or P5Q Pro motherboards who need to reach the board's 16 GB maximum capacity.

Unbuffered non-ECC DIMMs

Each stick uses a standard 240-pin DDR2 form factor without a heat spreader, keeping the profile low for tight CPU cooler clearances. The modules must be installed in matched pairs to activate dual-channel mode on the supported platforms.

Paired modules for dual-channel

The kit includes two sticks so the memory controller can run in dual-channel configuration immediately. A 64-bit operating system is required to address more than 4 GB, and the system may report only 3.5 GB usable when 4 GB is installed depending on memory allocation.

How it compares

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

Price $92.99
Cheaper than about 68% 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 $11.62 per GB
Pricier than about 56% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512646400DIMM2R8
Total capacity8 GB (2 × 4 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 systemsAsus/Asmobile P5 Motherboard P5Q Premium, P5Q Pro
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the DDR2 800 (PC2 6400) standard cap the memory bus at 800 MHz?

Yes, the kit runs at DDR2 800 which is PC2 6400, so the bus operates at 800 MHz.

Will the 240-pin DIMMs fit the four slots on an Asus P5Q Premium or P5Q Pro?

Yes, these are standard 240-pin DDR2 DIMMs and the P5Q Premium and P5Q Pro each have four DDR2 slots.

Why must the two 4 GB modules be installed as a matched pair?

The board requires modules to be ordered and installed in pairs to enable dual-channel mode; otherwise it will run in single-channel.

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