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Two green DDR2 DIMM sticks, 240-pin, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 533MHz CL4 DIMM - A86

SKU CH-9XY6-WMAHB

A 4 GB DDR2 kit (2 × 2 GB) running at 533 MHz CL4, validated for Dell OptiPlex GX280 small-form-factor desktops

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR2 533 (PC2 4200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL4
  • Memory timings4-4-4
  • Rated voltage1.8 V
  • 4 GB capacity expands multitasking headroom with 2 x 2 GB modules
  • DDR2 533 MHz CL4 timing delivers responsive data access for legacy systems
  • 240-pin DIMM form factor fits Dell Optiplex GX280 SFF slots directly
  • Non-ECC unbuffered design ensures stable operation without error-correction overhead
  • 8 V operating voltage matches original platform power requirements

4 GB DDR2 Kit for Dell OptiPlex GX280 SFF

This kit provides 4 GB of DDR2 memory in two matched 2 GB modules designed specifically for the Dell OptiPlex GX280 Small Form Factor. It uses unbuffered, non-ECC DIMMs that install directly into the system's standard memory slots. The modules operate at the standard 1.8 V for DDR2 technology. This is a straightforward capacity upgrade for that platform.

Suits owners of the OptiPlex GX280 SFF adding

Buyers with a different desktop, laptop or server cannot use these DIMMs because the pin layout and electrical signalling are specific to DDR2 systems. Systems requiring ECC or registered modules will not accept this unbuffered, non-ECC kit. Anyone needing more than 4 GB total capacity must look beyond this two-module package.

Speed rated at DDR2 533 MHz (PC2-4200) CL4

The modules run at 533 MHz with a CAS latency of 4 and timings of 4-4-4, matching the PC2-4200 specification. This speed grade determines whether the memory will operate at the intended frequency inside the GX280 SFF. If the platform requires a different DDR2 speed grade, these sticks may down-clock or fail to post.

How it compares

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

Price $15.99
Cheaper than about 93% 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 $4.00 per GB
Cheaper than about 84% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256644200DIMMDR
Total capacity4 GB (2 × 2 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 533 (PC2 4200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL4
Memory timings4-4-4
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Optiplex Gx280 Small Form Factor
In the box
Included items2 Memory RAM Sticks

Questions about this item

What DDR2 standard does this kit use and what speed does it run at?

The kit uses DDR2 533 (PC2 4200) modules rated at CL4 4-4-4 timing.

What physical slot and form factor are required for these modules?

Each stick is a 240-pin unbuffered DIMM without a heat spreader, designed for the four slots in a Dell OptiPlex GX280 Small Form Factor.

How are the two sticks installed and which mistake should be avoided?

Insert both modules into matching-coloured slots for dual-channel operation; do not mix them with any existing memory of a different speed or latency.

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