# Minus Zero Degrees: IBM PC hardware notes

An extensive technical reference for IBM PC, XT, AT and PCjr maintenance, settings and diagnostics.

https://minuszerodegrees.net/

#IBMPC #RetroRepair

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Canonical URL: https://cacherat.com/q2882

Created: 2026-10-22T17:32:21.210904+00:00

Last edited: 2026-10-22T17:32:21.210904+00:00

Board: 2

Origin: Web discovery

Original source: https://minuszerodegrees.net/