Scrap Wiki

Last Updated: September 15, 2026

What Determines E-Scrap Value? Electronics Markets vs. Raw Materials Market

Learn how electronics markets, raw-material prices, mining, recycling, processing, and Ohata classifications influence e-scrap value.

PC Memory(RAM) Featured Desktop Motherboard Circuit Board

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Last Updated: September 15, 2026

Gold Fingers and Gold-Plated Contact Identification Guide

Gold fingers are narrow, gold-plated contacts found along the edges of memory modules, graphics cards, and other circuit boards. This guide explains how to identify them and how hard gold differs from other gold-colored PCB finishes. Learn what alignment notches, beveled edges, shorter contacts, and insertion marks can reveal about their design and condition.

PC Memory(RAM) Desktop Motherboard Computer CPU

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Last Updated: September 7, 2026

Ohata RAM Scrap Classification Guide | RAM Recycling Grades, Server ECC RAM & Gold Finger Memory

Learn how to identify RAM-S, RAM-A, RAM-B, RAM-C, and RAM-D using the Ohata RAM Scrap Classification System. Includes engineering criteria, identification methods, technical references, and recycling guidance.

PC Memory(RAM)

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Last Updated: August 29, 2026

RAM B Grade Scrap | Ohata RAM Classification Wiki

Identify RAM-B Grade scrap by attached heat spreaders, decorative covers, silver-colored contacts, and trimmed connector edges. Learn how to examine desktop and laptop RAM, safely handle removable covers, compare RAM-B with other RAM grades, and understand how completeness and condition affect classification.

PC Memory(RAM)

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Last Updated: August 29, 2026

RAM A Grade Scrap | Ohata RAM Classification Wiki

Identify RAM-A scrap from complete, uncovered desktop DIMMs and laptop SO-DIMMs with intact gold-plated edge contacts. Learn how module format, IC population, connector condition, covers, completeness, and damage affect classification. Compare RAM-A with RAM-S, RAM-B, RAM-C, and RAM-D across DDR through DDR5 memory.

PC Memory(RAM)

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Last Updated: August 29, 2026

RAM S Grade Scrap | Ohata RAM Classification Wiki

Identify RAM-S scrap by its gold fingers, high IC density, registered or buffered construction, and enterprise server-memory layout. Learn how ECC, RDIMM, and LRDIMM features support identification. Compare RAM-S with RAM-A, RAM-B, RAM-C, and RAM-D, and understand how covers, completeness, damage, and contamination affect classification.

PC Memory(RAM)

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