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G31M

ATXPWR1: ATX Power Source Connector

This connector allows user to connect 24-pin power connector on the ATX

power supply.

Pin Assignment Pin Assignment

13 +3.3V 1 +3.3V

14 -12V 2 +3.3V

15 Ground 3 Ground

16 PS_ON 4 +5V

17 Ground 5 Ground

18 Ground 6 +5V

19 Ground 7 Ground

20 NC 8 PW_OK

21 +5V 9 Standby Voltage+5V

22 +5V 10 +12V

23 +5V 11 +12V

24 Ground 12 +3.3V

ATXPWR2: ATX Power Source Connector

This connector provides +12V to CPU power circuit.

Assignment

1 +12V

2 +12V

3 Ground

4 Ground

Note:

Before power on the system, please make sure that both ATXPWR1 and ATXPWR2

connectors have been plugged-in.

Biostar G31M User Manual

Questions and Answers: