Biostar H81MHV3 3.0 - Инструкция по эксплуатации - Страница 14

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Chapter 2: Hardware installation

2.7 Headers & Connectors

ATX: ATX Power Source Connector 

For better compatibility, we recommend to use a standard ATX 24-pin power supply for this 

connector. Make sure to find the correct orientation 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

ATX_12V_2X2: ATX Power Source Connector

The connector provides +12V to the 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 ATX and ATX_12V_2X2 connectors 

have been plugged-in.

»

   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.

F_PANEL: Front Panel Header

This connector includes Power-on, Reset, HDD LED and Power LED connections. It allows user

to connect the PC case’s front panel switch functions.

Pin Assignment

Function

Pin Assignment

Function

1

HDD LED(+) HDD 

LED

2

Power LED (+) Power 

LED

3

HDD LED(-)

4

Power LED (-)

5

Ground

Reset 

Button

6

Power Button

Power-On 
Button

7

Reset Control

8

Ground

9

NC

NC

10 NA

NA