{"id":22234,"date":"2018-03-28T18:55:52","date_gmt":"2018-03-28T11:55:52","guid":{"rendered":"http:\/\/tom.ji42.com\/?p=22234"},"modified":"2018-03-28T18:55:52","modified_gmt":"2018-03-28T11:55:52","slug":"atx-24-pin-12v-power-supply-pinout","status":"publish","type":"post","link":"https:\/\/tom.tomwork.net\/?p=22234","title":{"rendered":"ATX 24 pin 12V Power Supply Pinout"},"content":{"rendered":"

Pinout for the Standard ATX 24 pin 12V Motherboard Power Connector<\/p>\n

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\"Picture<\/div>\n

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<\/figcaption><\/figure>\n
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The ATX 24 pin\u00a0power supply<\/a>\u00a0connector is the standard\u00a0motherboard<\/a>\u00a0power connector in computers today.<\/p>\n

The connector itself is a Molex 39-01-2240 connector, often called a Molex Mini-fit Jr.<\/p>\n

<\/p>\n

ATX 24 pin 12V Power Connector Pinout (ATX v2.2)<\/h3>\n

Below is the complete pinout table for the standard ATX 24 pin 12V power supply connector as of\u00a0Version 2.2 of the ATX Specification (PDF)<\/a>.<\/p>\n

Note:<\/strong>\u00a0If you’re using this pinout table to\u00a0test power supply voltages<\/a>, be aware that the voltages must be within\u00a0ATX specified tolerances<\/a>.<\/p>\n

<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Pin<\/th>\nName<\/th>\nWire Color<\/th>\nDescription<\/th>\n<\/tr>\n
1<\/td>\n+3.3V<\/td>\nOrange<\/td>\n+3.3 VDC<\/td>\n<\/tr>\n
2<\/td>\n+3.3V<\/td>\nOrange<\/td>\n+3.3 VDC<\/td>\n<\/tr>\n
3<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
4<\/td>\n+5V<\/td>\nRed<\/td>\n+5 VDC<\/td>\n<\/tr>\n
5<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
6<\/td>\n+5V<\/td>\nRed<\/td>\n+5 VDC<\/td>\n<\/tr>\n
7<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
8<\/td>\nPWR_ON<\/td>\nGray<\/td>\nPower Good<\/td>\n<\/tr>\n
9<\/td>\n+5VSB<\/td>\nPurple<\/td>\n+5 VDC Standby<\/td>\n<\/tr>\n
10<\/td>\n+12V1<\/td>\nYellow<\/td>\n+12 VDC<\/td>\n<\/tr>\n
11<\/td>\n+12V1<\/td>\nYellow<\/td>\n+12 VDC<\/td>\n<\/tr>\n
12<\/td>\n+3.3V<\/td>\nOrange<\/td>\n+3.3 VDC<\/td>\n<\/tr>\n
13<\/td>\n+3.3V<\/td>\nOrange<\/td>\n+3.3 VDC<\/td>\n<\/tr>\n
14<\/td>\n-12V<\/td>\nBlue<\/td>\n-12 VDC<\/td>\n<\/tr>\n
15<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
16<\/td>\nPS_ON#<\/td>\nGreen<\/td>\nPower Supply On<\/td>\n<\/tr>\n
17<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
18<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
19<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n
20<\/td>\nNC<\/td>\nWhite<\/td>\n-5 VDC (Optional – Removed in ATX12V v2.01)<\/td>\n<\/tr>\n
21<\/td>\n+5V<\/td>\nRed<\/td>\n+5 VDC<\/td>\n<\/tr>\n
22<\/td>\n+5V<\/td>\nRed<\/td>\n+5 VDC<\/td>\n<\/tr>\n
23<\/td>\n+5V<\/td>\nRed<\/td>\n+5 VDC<\/td>\n<\/tr>\n
24<\/td>\nCOM<\/td>\nBlack<\/td>\nGround<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The pinouts for the\u00a015 pin SATA Power Connector<\/a>,\u00a04 pin Peripheral Power Connector<\/a>,\u00a04 pin Floppy Drive Power Connector<\/a>, and for other ATX power supply connectors can be seen in our\u00a0ATX Power Supply Pinout Tables<\/a>\u00a0list.<\/p>\n

More Information on the ATX 24 Pin 12V PSU Connector<\/h3>\n

The ATX 24 pin 12V power supply connector can only be plugged in while pointing a specific direction on the motherboard. If you look carefully at the picture at the top of this page, you can see that the pins take a unique shape, a shape which the motherboard matches in only one direction.<\/p>\n

<\/div>\n

The original ATX standard supported a 20 pin connector with a very similar pinout as the 24 pin connector but with pins 11, 12, 23, and 24 omitted. This means that the newer 24 pin power supply is useful for motherboards that require more power, and therefore eliminates the need for ATX 12V power supplies to provide an auxiliary power cable (although some still may).<\/p>\n

<\/div>\n

24 pin & 20 pin Compatibility<\/h3>\n

The additional four pins are usually detachable (like you can probably see in the lower part of the image above), allowing it to be used on a 20 pin motherboard connection. The extra block of pins simply hangs over the motherboard connector – they\u00a0don’t<\/em>\u00a0plug into another slot. Some motherboards allow the reverse: to use the older 20 pin power supply cable on a 24 pin motherboard connection.<\/p>\n

If you need to use a 24 pin power supply connector on a motherboard that only accepts a 20 pin cable, there are a number of online retailers where you can purchase a 24 pin to 20 pin adapter, like\u00a0this StarTech adapter from Amazon<\/a>. Though the motherboard appears to accept all 24 pins using this type of adapter, it still, of course, means that the additional four pins go unused.<\/p>\n<\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Pinout for the Standard ATX 24 pin 12V Motherboard Power Connector The ATX 24 pin\u00a0power supply\u00a0connector is the standard\u00a0motherboard\u00a0power connector in computers today. The connector itself is a Molex 39-01-2240 connector, often called a Molex Mini-fit Jr.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[13],"tags":[],"class_list":["post-22234","post","type-post","status-publish","format-standard","hentry","category-13"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6cOVM-5MC","_links":{"self":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/22234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22234"}],"version-history":[{"count":1,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/22234\/revisions"}],"predecessor-version":[{"id":22235,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/22234\/revisions\/22235"}],"wp:attachment":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}