Difference between revisions of "Template:ATX power connector"
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(Removed stupid information about switching power supply on by connecting pins 8 and 16 together. Do not do this unless you want to get an on/off/on/off/... oscillating power supply.) |
blackwiki>Plugwash (pin 13 is BOTH power and remote sense) |
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| colspan="6" style="font-size:75%; width: 350px"| | | colspan="6" style="font-size:75%; width: 350px"| | ||
| − | * Pins 8 | + | * Pins 8, and 16 (shaded) are control signals, not power: |
** "Power On" is [[Pull-up resistor|pulled up]] to +5V by the PSU, and must be driven low to turn on the PSU. | ** "Power On" is [[Pull-up resistor|pulled up]] to +5V 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. | ** "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 [[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 −5V, 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 −5V, 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. | ||
Revision as of 18:31, 12 September 2011
| 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 |
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- ↑ "ATX Specification Version 2.1" (PDF).