HP/COMPAQ 404574-888 Memory Pc2-6400 1Gb

Name: HP/COMPAQ 404574-888 Memory Pc2-6400 1Gb
Brand: HP
SKU: B004MU264M

Bottom line: The HP/COMPAQ 404574-888 Memory Pc2-6400 1Gb is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-19

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 404574-888

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

HP 1GB DDR2 memory DIMM, PC2-6400, 800MHz, CL6, 404574-888 (PC2-6400, 800MHz, CL6) PC2-6400, 800MHz, CL6

SpecPicks Verdict

SpecPicks scored HP/COMPAQ 404574-888 Memory Pc2-6400 1Gb using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. HP's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

404574-888

Full Specifications

Brand	HEWLETT PACKARD
RAM Size	1 GB
Unit Count	1 Count
Form Factor	DIMM
Memory Speed	800 MHz
Model Number	404574-888
Number of Pins	240
Mfr Part Number	404574-888
Memory Generation	DDR2
Compatible Devices	Desktop
Data Transfer Rate	800 MHz
Memory Form Factor	DIMM
Additional Features	Lightweight
Computer Memory Size	1 GB
RAM Memory Technology	DDR2

Ready to buy?

HP/COMPAQ 404574-888 Memory Pc2-6400 1Gb is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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