ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide

Scope and location

Exact named pinout variant only; not capability or compatibility approval.

Electrical > Timing, Housekeeping and Control > PS_ON# — REQUIRED, opening paragraphs and Table 4-12

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Inspected

2026-10-21

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public page

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Source scope and unresolved evidence are preserved in the engineering variant.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.