Difference between revisions of "Template:ATX power connector"

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(This description is not more precise as, as can be read in the four wire sensing article, the point of the sense wire is that is low current hence low voltage drop. Also, gauge is US centric wording.)
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| style="text-align:left;"                                  | Reserved{{efn|group=ATXpc|This pin (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.}}
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| style="text-align:left;"                                  | Reserved{{efn|group=ATXpc|This pin (formerly −5 V, {{color box|white}} 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.}}
 
|                                                              {{n/a|None}}
 
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Revision as of 21:20, 17 May 2016

24-pin ATX12V 2.x power supply connector[lower-alpha 1]
Color Signal[lower-alpha 2] Pin Pin[lower-alpha 3] Signal[lower-alpha 2] Color
Orange +3.3 V 1 13 +3.3 V Orange
+3.3 V sense[lower-alpha 4] Brown
Orange +3.3 V 2 14 −12 V Blue
Black Ground 3 15 Ground Black
Red +5 V 4 16 Power on[lower-alpha 5] Green
Black Ground 5 17 Ground Black
Red +5 V 6 18 Ground Black
Black Ground 7 19 Ground Black
Grey Power good[lower-alpha 6] 8 20 Reserved[lower-alpha 7] None
Purple +5 V standby 9 21 +5 V Red
Yellow +12 V 10 22 +5 V Red
Yellow +12 V 11[lower-alpha 8] 23[lower-alpha 8] +5 V Red
Orange +3.3 V 12[lower-alpha 8] 24[lower-alpha 8] Ground Black
  1. 20-pin ATX connector omits the last four pins (that is, pins 11, 12, 23 and 24).
  2. 2.0 2.1   Light-blue background denotes control signals.
  3. Pins 13–21 are numbered 11–20 in the 20-pin connector.
  4. Supplies +3.3 V power and also has a second low-current wire for remote sensing.[1]
  5. This is a control signal. It is pulled up to +5 V by the PSU, and must be driven low to turn on the PSU.
  6. This is a control signal. It is low when other outputs have not yet reached, or are about to leave, correct voltages.
  7. This pin (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.
  8. 8.0 8.1 8.2 8.3 These pins are not present in the 20-pin ATX connector.
  1. "ATX Specification Version 2.1" (PDF).