Foxconn Q77M - Manual (Page 21)

14
2
14
2-4 Install other Internal Connectors
Power Connectors
This mother�oard uses an ATX power supply. In order not to damage any device, make sure all the
devices have �een installed properly �efore applying the power supply.
24-pin ATX Power Connector : PWR1
PWR1 is the ATX power supply connector. Make sure that the power supply ca�le and pins are
properly aligned with the connector on the mother�oard. Firmly plug the power supply ca�le into the
connector and make sure it is secure.
4-pin ATX 12 V Power Connector : PWR2
Connect the 4-pin ATX 12V power supply to PWR2 and provides power to the CPU.
Pin # Definition Pin # Definition
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 1� GND
4 +�V 16 PS_ON(Soft On�Off)
� GND 1� GND
6 +�V 18 GND
� GND 19 GND
8 Power Good 20 NC
9 +�V S�(Stand �y +�V) 21 +�V
10 +12V 22 +�V
11 +12V 23 +�V
12 3.3V 24 GND
We recommend you using a 24-pin power supply.
If you are using a 20-pin power supply, you need
to align the ATX power connector according to
the picture.
CA
UT
IO
N
!
20-Pin Power
Pin No. 24
Pin # Definition
1 GND
2 GND
3 +12V
4 +12V
3 1
GND +12V
4 2
PWR2
PWR1
24 13
12 1