20 pin MOLEX 39-29-9202 connector at the motherboard.
| Color | Pin | Name | Description | Color | Pin | Name | Description | |
|---|---|---|---|---|---|---|---|---|
| orange | 1 | +3.3 VDC | Power +3.3V | orange | 11 | +3.3 VDC | Power +3.3V | |
| orange | 2 | +3.3 VDC | Power +3.3V | blue | 12 | -12 VDC | Power -12V | |
| black | 3 | GND | Ground | black | 13 | GND | Ground | |
| red | 4 | +5 VDC | Power +5V | green | 14 | PS-ON | Remote Power ON/OFF | |
| black | 5 | GND | Ground | black | 15 | GND | Ground | |
| red | 6 | +5 VDC | Power +5V | black | 16 | GND | Ground | |
| black | 7 | GND | Ground | black | 17 | GND | Ground | |
| grey | 8 | PWROK | Power Good | 18 | Reserved | |||
| purple | 9 | +5 VSB | +5V Standby | red | 19 | +5 VDC | Power +5V | |
| yellow | 10 | +12 VDC | Power +12V | red | 20 | +5 VDC | Power +5V |
Notes
- Same as ATX except that -5VDC is removed from pin 18
- SFX power connector on the motherboard consists of two rows of 10 pins.
- This connector from the SFX power supply can only be fitted in one way.
- /PSON activated by pressing and releasing the power button while the power supply is in standby mode.
- Activating /PSON connects the power supply’s /PSON input to ground, thereby switching the power supply to full-on condition.
- 18 AWG is recommended for all wires except pin 11, which should be 22 AWG.
- For 300W configurations 16 AWG is recommended.
References
- Generic Mainboard Manual