Crucial CT25672AA80E 2GB DDR2 800 PC2-6400 RAM

Name: Crucial CT25672AA80E 2GB DDR2 800 PC2-6400 RAM
Brand: Crucial
SKU: CT25672AA80E

Overview

The Crucial CT25672AA80E is a 2GB DDR2-800 (PC2-6400) ECC memory module engineered for use in servers and workstations where data integrity is paramount. ECC memory continuously monitors for single-bit errors and corrects them on the fly, preventing the kind of silent data corruption that can cause crashes or data loss in production environments. Crucial subjects each module to rigorous testing and qualification, which means it meets the reliability bar expected in enterprise and professional computing contexts.

While DDR2 is well past its mainstream lifespan, many legacy servers, embedded systems, and specialized workstations still depend on it. Finding quality DDR2 ECC modules in particular has become more difficult as inventory dwindles, which makes a known-good module from a major manufacturer like Crucial a valuable find. At 2GB, this module is best suited for topping off existing configurations or replacing a failed stick rather than building out large memory arrays, but for the systems it supports, it remains a dependable and cost-effective maintenance component.

Key Features

Capacity: 2 GB

Memory Type: DDR2 SDRAM - DIMM 240-pin

Upgrade Type: Generic

Specifications

Capacity

2GB

Memory Type

DDR2

Speed

800 MHz (PC2-6400)

Error Correction

ECC (Unbuffered)

Module Type

DIMM

Brand

Crucial

Model Number

CT25672AA80E

Similar Products

Other products from the same family that visitors often consider:

Currently Unavailable

Pros & Cons

👍 Pros

ECC support detects and corrects single-bit memory errors, improving system stability for critical workloads.
Crucial's testing and qualification process provides confidence in module reliability.
DDR2-800 speed is the fastest tier available for the DDR2 standard, maximizing throughput on compatible boards.
Useful for extending the life of legacy server hardware that cannot accept newer memory types.

👎 Cons

2GB capacity is very small by modern standards and may only be practical as a supplementary module.
DDR2 is a legacy memory standard, limiting this module to older systems that cannot be upgraded to DDR3 or DDR4.
Operating at DDR2 speeds and voltages, it consumes more power per gigabyte than current-generation memory.

Frequently Asked Questions

Is this memory module ECC or non-ECC?

The CT25672AA80E is an ECC (Error-Correcting Code) unbuffered module, as indicated by its Crucial part number convention. It is intended for servers and workstations that support ECC memory.

What motherboards and systems is this module compatible with?

It is compatible with systems that accept DDR2-800 (PC2-6400) unbuffered ECC DIMMs. Check your motherboard or server documentation to confirm DDR2 ECC support before purchasing.

Can this module be paired with non-ECC RAM in the same system?

No. Mixing ECC and non-ECC memory is not supported on most platforms and can prevent the system from booting. All installed modules should match in type.

Is this module still useful given that DDR2 is an older standard?

Yes, for legacy servers and workstations that require DDR2 memory, this module is a reliable way to maintain or restore capacity without replacing the entire system.