BTX motherboard power supply

pinout

Standard interface between BTX motherboard and compatible power supply

24 pin MOLEX 44206-0007 connector  at the motherboard

Pin Signal Description 1 +3.3 VDC   2 +3.3 VDC   3 COM   4 +5 VDC   5 COM   6 +5 VDC   7 COM   8 PWR_OK Power good - indicate that VDC voltages are in range. 9 +5 VSB Standby voltage 10 +12 VDC   11 +12 VDC   12 +3.3 VDC   13 +3.3 VDC   14 -12 VDC   15 COM   16 PS_ON# Active low. TTL compatible (0.1-0.8V low; 2.0 high?). When low - DC outputs are enabled. When high - power supply should not deliver DC current. 17 COM   18 COM   19 COM   20 N/C   21 +5 VDC   22 +5 VDC   23 +5 VDC   24 COM

24 pin MOLEX 39-01-2240 connector  at the power supply cable

Source:www.pinouts.ru