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Chapter 2: Hardware installaon | 13

A68MHE

2.7 Headers & Connectors

ATXPWR1: ATX Power Source Connector

For beer compability, we recommend to use a standard ATX 24-pin power supply for this

connector. Make sure to nd the correct orientaon before plugging the connector.

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 will provide +12V to CPU power circuit.

Pin Assignment

1 +12V

2 +12V

3 Ground

4 Ground

Note

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

havebeenplugged-in.

 Insucientpowersuppliedtothesystemmayresultininstabilityortheperipheralsnotfunconing

properly.UseofaPSUwithahigherpoweroutputisrecommendedwhenconguringasystemwith

morepower-consumingdevices.

Biostar A68MHE User Manual

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