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| AT motherboard power supply connector pinout | connector or cable wiring scheme |
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12 pin 2x MOLEX 15-48-0106 connector
at the computer | AT PSU's were used before ATXbecome to be standard.AT power supply delivers +5 V, +12 V, -5 V and -12 V voltages using two six-pin connectors. A few newer boards used an aditional connector for +3.3 V. Note, that you must installthese connectors to the motherboard in a way that the black wires are placed on the center, or your equipment will be damaged.P8 AT power supply connector Pin | Name |   | Color | Description |
1 | PG |  | Orange | Power Good, +5 VDC when all voltages has stabilized. |
2 | +5V |   | Red | +5 VDC (or n/c) |
3 | +12V |   | Yellow | +12 VDC |
4 | -12V |   | Blue | -12 VDC |
5 | GND |   | Black| Ground |
6 | GND |   | Black | Ground |
P9 AT power supply connector Pin | Name |   | Color | Description |
1 | GND |   | Black | Ground |
2 | GND |   | Black | Ground |
3 | -5V |   |White or Yellow | -5 VDC |
4 | +5V |   | Red | +5 VDC |
5 | +5V |   | Red | +5 VDC |
6 | +5V |   | Red | +5 VDC |
Note: Pins part number is 08-50-0276, Product specification is PS-90331.P10 ATpower supply connector (rarely seen) Pin | Name |   | Color | Description |
1 | GND |   | Black | Ground |
2 | GND |   | Black | Ground |
3 | GND |   | Black | Ground |
4 | 3.3v |   | Green | +3.3VDC |
5 | 3.3v |   | Green | +3.3 VDC |
6 | 3.3v |   | Green | +3.3 VDC |
 
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6 pin 2x MOLEX 90331-0001 connector
at the Powersupplycables |
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Pinouts.ru > ATX, BTX, WTX and other power supply cables connectors pinouts listing > Pinout of AT motherboard power supply and layout of 12 pin 2x MOLEX 15-48-0106connector and 6 pin 2x MOLEX 90331-0001 connector | Is it correct?: | should be correct |
Source(s) of this and additional information: Hardware Book, Bill ShepherdContributor: Brad Gilbert | 12...