Biostar B250MHC User Manual

16 | Chapter 2: Hardware installaon
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 Le 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 Le line in 9 LFT Line Out
10 Jack Sense 10 LFT Line Out
Note
»
 Itisrecommendedthatyouconnectahigh-denionfrontpanelaudiomoduletothisconnectorto
availofthemotherboard’shighdenionaudiocapability.
»
 Pleasetrytodisablethe“FrontPanelJackDetecon”ifyouwanttouseanAC’97frontaudiooutput
cable.ThefunconcanbefoundviaO.S.AudioUlity.
COM: Serial Port Header
The motherboard has a serial port header for connecng RS-232 Port.
Pin Assignment
1 Carrier detect
2 Received data
3 Transmied 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

Biostar B250MHC Specifications

General

Brand	Biostar
Model	B250MHC
Category	Motherboard
Language	English