Biostar B560MH-E PRO, Manual

Page: 19 / 140

Chapter 2: Hardware installation | 19
B560MX-E PRO | B560MH-E PRO
Note
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When using the front HD audio jack and plug in the headset, the rear sound will be automatically
Disabled.
»
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.
»
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.
COM1: 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
2.8 LEDs
Debug LED: Debug LED Indicators
This LEDs indicate the status of the motherboard.
CPU - indicates CPU is not detected or fail.
DRAM - indicates DRAM is not detected or fail.
VGA - indicates GPU is not detected or fail.
BOOT - indicates booting device is not detected
or fail.
Note
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After starting the computer, the LED indicators will light up in the following order:
CPU → DRAM → VGA → BOOT
»
When the computer is ready, the LED indicator will show where the error occurred and will stay on
until the problem is solved.
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After the computer is started, the Debug LED will not light up if there is no abnormality detected.