Difference between revisions of "Template:ATX power connector"

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|+ 24-pin ATX12V 2.x power supply connector<br />(20-pin omits the last four: 11, 12, 23 and 24)
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|+ 24-pin ATX12V 2.x power supply connector<br />(20-pin ATX connector omits the last four pins:<br />11, 12, 23 and 24)
 
! Color || Signal || Pin || Pin || Signal || Color
 
! Color || Signal || Pin || Pin || Signal || Color
 
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Revision as of 01:17, 28 November 2013

24-pin ATX12V 2.x power supply connector
(20-pin ATX connector omits the last four pins:
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).