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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.

商品特色

  • 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

商品規格

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

商品問答

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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