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Two green DDR2 SODIMM modules with black chips and gold contacts

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 800MHz SODIMM Dell Inspiron 17 1721

SKU CH-DNNF-TJRE3

A matched pair of 2 GB DDR2 800 MHz SODIMM modules adding 4 GB to a Dell Inspiron 17 1721 notebook

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • Guaranteed compatibility with Dell Inspiron 17 1721 notebook
  • 4GB total capacity in a matched 2 x 2GB kit
  • DDR2 800MHz speed rated at PC2-6400
  • Low 1.8V operation with CL6 latency timings
  • Unbuffered non-ECC 200-pin SODIMM with major-brand chips

Dell Inspiron 17 (1721) Memory Upgrade

This 4 GB kit uses two 2 GB DDR2 SODIMM modules built for the Dell Inspiron 17 (1721) notebook. It targets owners of that specific model who need to restore or expand system memory. The modules are unbuffered, non-ECC and run at 1.8 V.

200-Pin DDR2 SO-DIMM Installation

Each stick fits a standard 200-pin DDR2 SO-DIMM slot inside the notebook. The kit occupies both available sockets, so no spare slot remains for further expansion. Installation requires no additional cables, adapters or configuration changes beyond seating the modules.

4 GB Total Capacity at DDR2 800

The pair delivers 4 GB of memory at PC2-6400 speed with CL6 timing, suitable for everyday applications and light multitasking on the supported platform. Systems limited to 4 GB maximum will reach their ceiling with this kit, while boards that accept more will still have headroom for larger modules.

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 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $3.75 per GB
Cheaper than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256646400SO
Total capacity4 GB (2 × 2 GB)
Product type200-Pin DDR2 SO-DIMM
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 systemsDell Inspiron 17 (1721) Notebook
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the CL6 latency at 800 MHz become the bottleneck during long rendering sessions?

The modules run at CL6 6-6-6 timing, so latency is fixed at that level for sustained workloads.

How much heat do these 1.8 V sticks produce when the laptop runs all day?

They operate at 1.8 V with no heat spreader, so thermal output stays low inside the chassis.

Does my Inspiron 17 1721 need a specific BIOS version before I install this 2x2 GB kit?

The kit is validated for the Dell Inspiron 17 1721 notebook; no extra hardware is required.

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