User Manual

Quick Installation Guide
EPI-QM77 Quick Installation Guide 15
2.3.11 Serial Port 1 connector (J422/1)
Signal
PIN
PIN
Signal
GND
6
5
+5V
RX+
4
3
TX+
RX-
2
1
TX-
Note: J422/1 is available after
modifying the mode of COM1 in BIOS setting.
2.3.12 HD power connector (HD_PWR1)
Signal
PIN
+5V
4
+5V
3
GND
2
GND
1