User's Manual

2-23
Chapter 2: Motherboard information
NOTE: The serial port cables are purchased separately.
16. Serial port connectors (10-pin COM2, COM3, COM4)
These connectors are for serial (COM) ports. Connect the serial port cables
to these connectors, then install the module to a slot opening at the back of
the system chassis.
Q370I-IM-A Serial port (COM) connectors
COM2COM3COM4
PIN 1
DCD#
TXD
GND
RTS#
Ring
RXD
DTR#
DSR#
CTS#
17. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
Correctly orient the ATX power supply plugs into these connectors and push
down rmly until the connectors completely t.
Q370I-IM-A ATX power connectors
ATX12V
+12V_CPU
+12V_CPU
GND
GND
PIN 1
PIN 1
+3.3V
-12V
GND
ATX_PSON#_R
GND
GND
GND
-5V
+5V
+5V
+5V
GND
+3.3V
+3.3V
GND
+5V
GND
+5V
GND
NC
+5VSB
+12V
+12V
+3.3V
A
B
B
A
EATXPWR
Connector type
BOX header 2x5p, K10, 2.0mm pitch