Pinouts of Connectors

BTX motherboard power supply connector pinout

layout
schematic diagram
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standard interface between BTX motherboard and compatible power supply

24 pin MOLEX 44206-0007 connector pin-out & layout
24 pin MOLEX 44206-0007 connector  at the motherboard
Pin Signal Description
1+3.3 VDC  
2+3.3 VDC  
3COM  
4+5 VDC  
5COM  
6+5 VDC  
7COM  
8PWR_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  
15COM  
16PS_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.
17COM  
18COM  
29COM  
20N/C  
21+5 VDC  
22+5 VDC  
23+5 VDC  
24COM  

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24 pin MOLEX 39-01-2240 connector pin-outs & layouts
24 pin MOLEX 39-01-2240 connector  at the power supply cable
Pinouts.ru > Pinouts of power supplyes >  Pinout of BTX motherboard power supply connector and layout of 24 pin MOLEX 44206-0007 connector and 24 pin MOLEX 39-01-2240 connector

Source(s): BTX interface specification at the www.formfactors.org
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