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

Computer Memory Solutions

Computer Memory Solutions 2GB (2×1GB) DDR2 800MHz PC2-6400 CL6 240-pin DIMM for Dell Inspiron 531

SKU CH-2Z4T-1AKTT

A 2 GB dual-channel DDR2 800 MHz kit built for the Dell Inspiron 531 desktop

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 2 GB total capacity from a matched 2 x 1 GB kit
  • DDR2 800 MHz (PC2-6400) speed for responsive desktop performance
  • CL6 6-6-6 timing at 1.8 V for stable operation
  • 240-pin unbuffered non-ECC DIMMs built for Dell Inspiron 531
  • Major-brand chips with lifetime warranty when bought directly from CMS

Dell Inspiron 531 memory kit

This 2 GB kit contains two 1 GB DDR2 DIMMs built for the Dell Inspiron 531 series desktop. Each module runs at 800 MHz with CL6 timing and 1.8 V operation. The unbuffered, non-ECC design matches the original system specification for a straightforward capacity increase.

DDR2 800 platform ceiling

The Inspiron 531 chipset tops out at 4 GB total across its four sockets, so this kit fills half the maximum. DDR2 800 is the fastest speed the platform officially supports; faster modules will down-clock. Builders who want more storage or who need ECC registered memory must choose a different system.

Two-stick installation notes

Align the 240-pin edge connector with the keyed slot and press until the retention clips click. The low-profile sticks have no heat spreader, so they clear standard CPU coolers. Common issues include mixing CL5 and CL6 modules, which forces the slower timing, or seating only one side of the DIMM.

How it compares

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

Price $20.99
Cheaper than about 90% 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 $10.50 per GB
Pricier 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 nameCM128646400DIMMSR
Total capacity2 GB (2 × 1 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Inspiron 531 Series Desktop
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I choose the 2GB kit or add a single 1GB module?

The kit supplies 2GB as two matched 1GB sticks. Dell Inspiron 531 has four slots and supports up to 4GB total, so the pair fills half the capacity with dual-channel performance.

What does the 800MHz rating deliver in this desktop?

The modules run at DDR2 800 (PC2-6400) with CL6 timing at 1.8V, giving the Inspiron 531 its maximum supported memory bandwidth without overclocking.

Will the 240-pin DDR2 interface limit speed on this motherboard?

The 240-pin DDR2 DIMMs match the Inspiron 531 slots exactly. The board's memory controller caps operation at 800MHz, so the PC2-6400 rating is fully usable.

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