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Two green DDR2 DIMM sticks with black chips no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB (2×2GB) DDR2 6400 800MHz Non-ECC DIMM memory upgrade for Dell Vostro 420 Tower

SKU CH-5AZS-DYTP5

A two-stick kit of 240-pin DDR2 memory running at 800 MHz with CL6 timing for the Dell Vostro 420 Tower

  • Total capacity64 MB
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • Guaranteed Dell Vostro 420 compatibility validated by CMS
  • Dual-channel 4GB kit (2×2GB) for balanced bandwidth
  • DDR2-800 PC2-6400 speed supports responsive multitasking
  • CL6 1.8V unbuffered DIMMs install without BIOS tweaks
  • 240-pin non-ECC desktop form factor fits standard slots

Dell Vostro 420 upgrade kit

This 4 GB kit contains two 2 GB DDR2 800 MHz DIMMs built for the Dell Vostro 420 tower. The unbuffered non-ECC modules run at CL6 timings with 1.8 V voltage. System-specific validation guarantees they will be recognised by the motherboard without manual configuration.

Matched pair improves throughput

The two sticks form a dual-channel pair that doubles memory bandwidth over a single module. Each DIMM uses 64M×8 major-brand chips in a 2Rx8 organisation for stable operation at PC2-6400 speed. No heat spreaders are fitted, keeping the profile low for tight tower clearances.

Simple 240-pin installation

Insert each module into the 240-pin DDR2 slots until the retention clips click; the Vostro 420 has four sockets supporting up to 8 GB total. Buyers who need more than 8 GB or who use a different Dell model cannot use this kit.

How it compares

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

Price $16.99
Cheaper than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 64 MB
Lower than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $265.47 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256646400DIMMDR
Total capacity64 MB
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 systemsDell Vostro 420 Tower
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the CL6 timing on these DDR2 800 modules require any future timing adjustments or replacement?

The CL6 6-6-6 timing is fixed on these unbuffered DIMMs; no user adjustment is needed and the modules do not degrade timing-wise under normal use.

What limit appears first when the Dell Vostro 420 runs these two 2 GB sticks at full load all day?

The system maximum of 8 GB across four sockets is the hard ceiling; with only 4 GB installed you still have headroom before hitting that cap.

How much heat and power do the 1.8 V DDR2 6400 sticks generate during continuous operation?

Each module runs at the standard 1.8 V for DDR2 800 without a heat spreader, so thermal output stays within normal DDR2 limits for a tower chassis.

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