MSI G52-MA00542 - Manual (Page 23)

Hardware Setup
2-11
Serial Port Connectors: COM A & COM B (for SiS645)
The mainboard offers one 9-pin male DIN connectors as serial port COM
A for SiS650 chipset, or two serial ports COM A & B for SiS 645 chipset. Both
COMA and COM B are 16550A high speed communication ports that send/
receive 16 bytes FIFOs. You can attach a serial mouse or other serial device
directly to them.
PIN SIGNAL DESCRIPTION
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready)
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate
VGA Connector (for SiS 650)
The mainboard provides a DB 15-pin female connector to connect a VGA
monitor.
5 1
15 11
VGA Connector
(DB 15-pin)
Pin Signal Description
1 RED
2 GREEN
3 BLUE
4 N/C
5 GND
6 GND
7 GND
8 GND
9 +5V
10 GND
11 N/C
12 SDA
13 Horizontal Sync
14 Vertical Sync
15 SCL
COM A & B Pin Definition
COM A & B
1 2 3 4 5
6 7 8 9