MSI PRO H610M-C EX Manuel D'utilisation page 21

JCOM1: Serial Port Connector
This connector allows you to connect the optional serial port with bracket.
2 10
1 9
EZ Debug LED
These 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.
Pin Signal Name
1 DCD
3 SOUT
5 Ground
7 RTS
9 RI
19
Pin Signal Name
2 SIN
4 DTR
6 DSR
8 CTS
10 No Pin