Name: Biostar H81MHV3
Brand: Biostar
Rating: 4 (1 reviews)

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H81MHV3/H81MDV3/H81MGV3/H81MLV3/H81MHV3L

J_COM: Serial Port Header

The motherboard has a serial port header for connecting RS-232 Port.

Pin Assignment

1 Carrier detect

2 Received data

3 Transmitted data

4 Data terminal ready

5 Signal ground

6 Data set ready

7 Request to send

8 Clear to send

9 Ring indicator

10 Key

F_AUDIO1: Front Panel Audio Header

This header allows user to connect the chassis-mount front panel audio I/O which

supports HD and AC’97 audio standards.

HD Audio AC’97

Pin Assignment Pin Assignment

1 Mic Left in 1 Mic In

2 Ground 2 Ground

3 Mic Right in 3 Mic Power

4 GPIO 4 Audio Power

5 Right line in 5 RT Line Out

6 Jack Sense 6 RT Line Out

7 Front Sense 7 Reserved

8 Key 8 Key

9 Left line in 9 LFT Line Out

10 Jack Sense 10 LFT Line Out

Note1: It is recommended that you connect a high-definition front panel audio module to this

connector to avail of the motherboard's high definition audio capability.

Note2: Please try to disable the "Front Panel Jack Detection" if you want to use an AC'97 front

audio output cable. The function can be found via O.S. Audio Utility.

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Biostar H81MHV3 Specifications

General