Difference between revisions of "Template:ATX power connector"

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** ''Power good'' is low when other outputs have not yet reached, or are about to leave, correct voltages.
 
** ''Power good'' is low when other outputs have not yet reached, or are about to leave, correct voltages.
 
* Pin 13 supplies +3.3&nbsp;V power and also has a second thinner wire for [[Four-terminal sensing|remote sensing]].<ref>{{cite web |title=ATX Specification Version 2.1|url=http://www.formfactors.org/developer/specs/atx2_1.pdf}}</ref>''
 
* Pin 13 supplies +3.3&nbsp;V power and also has a second thinner wire for [[Four-terminal sensing|remote sensing]].<ref>{{cite web |title=ATX Specification Version 2.1|url=http://www.formfactors.org/developer/specs/atx2_1.pdf}}</ref>''
 
 
* Pin 20 (formerly −5&nbsp;V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V ver. 1.2, and deleted as of ver. 1.3.
 
* Pin 20 (formerly −5&nbsp;V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V ver. 1.2, and deleted as of ver. 1.3.
 
* The right-hand pins are numbered 11–20 in the 20-pin version.
 
* The right-hand pins are numbered 11–20 in the 20-pin version.

Revision as of 06:28, 26 September 2011

24-pin ATX12V 2.x power supply connector
(20-pin omits the last four: 11, 12, 23 and 24)
Color Signal Pin Pin Signal Color
Orange +3.3 V 1 13 +3.3 V Orange
+3.3 V sense Brown
Orange +3.3 V 2 14 −12 V Blue
Black Ground 3 15 Ground Black
Red +5 V 4 16 Power on Green
Black Ground 5 17 Ground Black
Red +5 V 6 18 Ground Black
Black Ground 7 19 Ground Black
Grey Power good 8 20 Reserved N/C
Purple +5 V standby 9 21 +5 V Red
Yellow +12 V 10 22 +5 V Red
Yellow +12 V 11 23 +5 V Red
Orange +3.3 V 12 24 Ground Black
  • Pins 8, and 16 (shaded) are control signals, not power:
    • Power on is pulled up to +5 V by the PSU, and must be driven low to turn on the PSU.
    • Power good is low when other outputs have not yet reached, or are about to leave, correct voltages.
  • Pin 13 supplies +3.3 V power and also has a second thinner wire for remote sensing.[1]
  • Pin 20 (formerly −5 V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V ver. 1.2, and deleted as of ver. 1.3.
  • The right-hand pins are numbered 11–20 in the 20-pin version.
  1. "ATX Specification Version 2.1" (PDF).