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Green rectangular DDR2 DIMM with gold contacts and black chips

Hynix

Hynix 2GB DDR2-800 PC2-6400 240-pin DIMM desktop RAM

SKU CH-Y51D-CD881

Adds 2 GB of DDR2 desktop memory running at 800 MHz with a 240-pin DIMM interface

  • 2GB capacity lets older desktops handle more tasks at once
  • DDR2-800 speed moves data at up to 800 MT/s
  • PC2-6400 bandwidth delivers 6400 MB/s peak throughput
  • 240-pin DIMM fits standard desktop memory slots
  • Low-density 2Rx8 organisation improves compatibility with Intel chipsets

Product Identity

This is a Hynix 2GB DDR2 desktop DIMM rated at PC2-6400 with an 800 MHz bus speed. The module uses a 240-pin interface and low-density 2RX8 organisation. It is intended for older desktop systems that require DDR2 memory.

Fit and Limits

This suits owners of legacy Intel platforms that accept low-density DDR2 DIMMs. Builders needing higher capacity per slot, dual-channel kits, or modules for AMD chipsets that prefer high-density parts should look at something else.

Deciding Specification

The 240-pin DDR2 form factor combined with low-density 2RX8 organisation is the single specification that decides compatibility. Only motherboards designed for this exact pin layout and density will recognise the full 2 GB capacity.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 96% of the 3,647 comparable items (median $90.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Questions about this item

How do I install this 240-pin DDR2 DIMM and what step do people often get wrong?

Align the notch on the module with the key in the DDR2 slot, press down firmly until both side clips snap shut; the common mistake is stopping before the clips fully engage.

What maintenance or replacement will this 2GB DDR2 module need later?

No scheduled maintenance is required; replacement is only necessary if the module fails or if the system is upgraded to a platform that no longer supports DDR2 memory.

What limit appears first on this PC2-6400 module under sustained use?

The bus speed of 800 MHz sets the maximum data rate; under continuous load the memory controller will not exceed this bandwidth ceiling.

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