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

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 800MHz CL6 Non-ECC DIMM Dell OptiPlex 755

SKU CH-7NAZ-TQZE9

A 4 GB matched pair of DDR2 800 MHz CL6 unbuffered DIMMs built for Dell OptiPlex 755 desktops

  • Capacity4GB (2 x 2GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 800 (PC2 6400)
  • CAS LatencyCL6
  • Timing6-6-6
  • Voltage1.8V
  • 4GB total capacity in a matched 2 x 2GB kit
  • DDR2 800MHz (PC2-6400) CL6 timing for responsive operation
  • 240-pin unbuffered non-ECC DIMM fits Dell OptiPlex 755 DT/MT/SFF
  • 8V standard voltage with major-brand chipset for stable performance
  • Guaranteed compatibility with lifetime warranty from Computer Memory Solutions

Targeted DDR2 upgrade for Dell OptiPlex 755

This 4 GB kit delivers two matched 2 GB DIMMs built to the PC2-6400 800 MHz CL6 specification. It is engineered for the OptiPlex 755 desktop, mini-tower and small-form-factor chassis. The modules are non-ECC, unbuffered and operate at the standard 1.8 V DDR2 voltage.

Steady throughput at rated speed

Running at the full 800 MHz data rate with 6-6-6 timings, the pair maintains its CL6 latency during extended workloads rather than throttling after a short burst. The 2Rx8 organisation and major-brand chipset keep bandwidth consistent across the four or two slots populated in the host system.

Plain green PCB fits tight spaces

Without a heat spreader the low-profile sticks clear cramped SFF interiors and sit cleanly in 240-pin slots. The standard notch alignment prevents mis-insertion, and the two-piece kit lets you populate matching channels for dual-channel operation where the motherboard supports it.

Puntos fuertes

  • 4GB total capacity in a matched 2 x 2GB kit
  • DDR2 800MHz (PC2-6400) CL6 timing for responsive operation
  • 240-pin unbuffered non-ECC DIMM fits Dell OptiPlex 755 DT/MT/SFF
  • 8V standard voltage with major-brand chipset for stable performance
  • Guaranteed compatibility with lifetime warranty from Computer Memory Solutions

Especificaciones

BrandComputer Memory Solutions
ModelCM256646400DIMMDR
Capacity4GB (2 x 2GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 800 (PC2 6400)
CAS LatencyCL6
Timing6-6-6
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Optiplex 755 Dt / Mt / Sff
Package Content2 Memory RAM Sticks

Preguntas sobre este artículo

How much power does the DDR2 800 CL6 kit draw when the Dell OptiPlex 755 runs all day?

The modules run at 1.8 V with no heat spreader, so power draw stays low and cooling relies on normal chassis airflow.

What must the Dell OptiPlex 755 already have for these 240-pin DIMMs to work?

The desktop needs two free 240-pin DDR2 slots and a motherboard that supports PC2-6400 800 MHz non-ECC unbuffered memory.

Will this 4 GB kit work alongside the original 2 GB sticks still in my OptiPlex 755?

Yes, if the board has four slots you can add this 2×2 GB kit to the existing pair, but total memory must not exceed the 8 GB or 4 GB limit for your chassis.

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