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

Computer Memory Solutions

Computer Memory Solutions 2GB (2x1GB) DDR2 800 CL6 240-Pin Dell Optiplex 755

SKU CH-NRWN-MWKMH

A 2 GB DDR2 kit (two 1 GB modules) rated at 800 MHz CL6 for Dell Optiplex 755 desktop, tower and small-form-factor systems

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • 2GB dual-channel kit boosts multitasking on Dell Optiplex 755
  • DDR2 800 CL6 timing delivers responsive legacy performance
  • 240-pin unbuffered non-ECC modules install without configuration
  • Major-brand chips ensure stable 1.8V operation
  • Matched 2x1GB pair enables full dual-channel bandwidth

Dell Optiplex 755 DDR2 kit

This 2GB kit contains two 1GB unbuffered DDR2 DIMMs rated at 800 MHz with CL6 timings. It is built for Dell Optiplex 755 desktop, minitower and small form factor systems that require 240-pin non-ECC memory at 1.8V.

Two matched 1GB modules

The pair is tested together so the motherboard can run in dual-channel mode without manual configuration. Major-brand chips and the CMS lifetime warranty cover the kit when purchased directly from the manufacturer.

Check your Optiplex 755 variant

Verify the chassis is a DT, MT or SFF model and that free 240-pin slots exist for two sticks. Systems already populated to the maximum slot count or running a different DDR generation 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 $21.99
Cheaper than about 89% 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 $11.00 per GB
Pricier than about 55% 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 Optiplex 755 Dt / Mt / Sff
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 240-pin DDR2 modules need any periodic cleaning or re-seating after installation?

No routine maintenance is required; the 1.8 V unbuffered DIMMs have no moving parts and no heat spreader to trap dust.

What limit appears first when the Optiplex 755 runs the 800 MHz kit at full load for hours?

The chipset’s maximum supported capacity is reached before any thermal or timing ceiling on the CL6 6-6-6 modules.

How much heat and fan noise do the two 1 GB sticks add when the system runs all day?

With no heat spreader and standard 1.8 V DDR2 operation, the modules add negligible heat and no audible noise increase.

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