Biostar Hi-Fi H87S3+ Manuel Du Propriétaire

This connector allows user to connect an ATX 24-pin power supply. Make sure to 
find the proper orientation before plugging the connector. 

 

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 

The connector provides +12V to the CPU power circuit. 

 

 

1 +12V 
2 +12V 
3 Ground 
4 Ground 

 

 

Note1: Before you power on the system, please make sure that both ATXPWR1 and ATXPWR2 
connectors have been plugged-in. 
Note2:

Insufficient power supplied to the system may result in instability or the peripherals not 

functioning properly. Use of a PSU with a higher power output is recommended when configuring a 
system with more power-consuming devices.