[{"data":1,"prerenderedAt":112},["ShallowReactive",2],{"connector:atx-24pin:en":3},{"connector":4,"prose":106,"confirmations":111},{"schemaVersion":5,"governance":6,"meta":18,"pins":36},"1.0.0",{"publication":7,"verification":10,"provenance":15},{"status":8,"publishedDate":9},"published","2026-10-19",{"status":11,"verifiedDate":9,"verifiedBy":12,"checklist":13},"verified","Antigravity (LLM review against cited primary sources authorized by owner GO)",{"schema":14,"technicalFacts":14,"relationships":14,"sources":14},true,{"sourceUrls":16},[17],"https:\u002F\u002Fedc.intel.com\u002Fcontent\u002Fwww\u002Fus\u002Fen\u002Fdesign\u002Fipla\u002Fsoftware-development-platforms\u002Fclient\u002Fplatforms\u002Falder-lake-desktop\u002Fatx-version-3-0-multi-rail-desktop-platform-power-supply-design-guide\u002F2.0\u002F2.1a\u002Fmain-power-connector-required\u002F",{"slug":19,"name":20,"title":21,"standard":22,"positionCount":23,"layout":24,"category":25,"source":26,"specs":32,"overview":34},"atx-24pin","ATX 24-Pin Power Supply Connector","ATX12V 24-Pin Main Motherboard Power Supply Connector Pinout","Intel ATX Version 3 (doc 336521)",24,"dual-row","power",[27],{"label":28,"url":17,"authority":29,"documentType":30,"publisher":31},"Intel ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide, doc 336521 rev 2.1a (2023), Table 5-1","primary","manufacturer_documentation","Intel",{"standard":33,"positions":23},"Molex Mini-Fit Jr. 24-pin",{"summaryKey":35},"connectors.atx24.summary",[37,41,43,48,52,54,56,58,63,67,71,73,75,78,82,84,88,90,92,94,99,101,103,105],{"n":38,"category":25,"signal":39,"role":40,"standardized":14},1,"+3.3V","+3.3 VDC Power Rail",{"n":42,"category":25,"signal":39,"role":40,"standardized":14},2,{"n":44,"category":45,"signal":46,"role":47,"standardized":14},3,"gnd","GND","Ground Return",{"n":49,"category":25,"signal":50,"role":51,"standardized":14},4,"+5V","+5 VDC Power Rail",{"n":53,"category":45,"signal":46,"role":47,"standardized":14},5,{"n":55,"category":25,"signal":50,"role":51,"standardized":14},6,{"n":57,"category":45,"signal":46,"role":47,"standardized":14},7,{"n":59,"category":60,"signal":61,"role":62,"standardized":14},8,"control","PWR_OK","Power good: driven high (+5 V TTL compatible, 2.4–5 V) once +12 V, +5 V and +3.3 V are within regulation; low when any of them drops or mains hold-up runs out",{"n":64,"category":25,"signal":65,"role":66,"standardized":14},9,"+5VSB","+5 VDC standby: present whenever mains power is applied, not switched by PS_ON#",{"n":68,"category":25,"signal":69,"role":70,"standardized":14},10,"+12V1","+12 VDC Power Rail",{"n":72,"category":25,"signal":69,"role":70,"standardized":14},11,{"n":74,"category":25,"signal":39,"role":40,"standardized":14},12,{"n":76,"category":25,"signal":39,"role":77,"standardized":14},13,"+3.3 VDC Power Rail, shared with the +3.3 V remote sense wire (brown, 22 AWG)",{"n":79,"category":25,"signal":80,"role":81,"standardized":14},14,"-12V","-12 VDC rail (±10 %; optional in ATX Version 3)",{"n":83,"category":45,"signal":46,"role":47,"standardized":14},15,{"n":85,"category":60,"signal":86,"role":87,"standardized":14},16,"PS_ON#","Power supply on, active low: pull to ground to switch on +12 V, +5 V, +3.3 V and -12 V; an internal pull-up keeps them off when open",{"n":89,"category":45,"signal":46,"role":47,"standardized":14},17,{"n":91,"category":45,"signal":46,"role":47,"standardized":14},18,{"n":93,"category":45,"signal":46,"role":47,"standardized":14},19,{"n":95,"category":96,"signal":97,"role":98,"standardized":14},20,"nc","Reserved","Reserved, not connected",{"n":100,"category":25,"signal":50,"role":51,"standardized":14},21,{"n":102,"category":25,"signal":50,"role":51,"standardized":14},22,{"n":104,"category":25,"signal":50,"role":51,"standardized":14},23,{"n":23,"category":45,"signal":46,"role":47,"standardized":14},{"title":107,"description":108,"card":109,"intro":110},"ATX 24-Pin Motherboard Connector Pinout","ATX 24-pin motherboard power connector pinout: +3.3 V, +5 V, +12 V, −12 V, +5VSB, PS_ON#, PWR_OK and grounds, per the Intel ATX Version 3 design guide.","Standard 24-pin ATX motherboard power-supply connector.","The 24-pin main power connector links an ATX power supply to the motherboard. Select a contact to see its supply rail or control signal and what it does.",null,1793836411786]