NEXCOM NEX 611 - Manual (Page 25)

Copyright © 2011 NEXCOM International Co., Ltd. All Rights Reserved. 14
Chapter 2: Installation
NEX 611 User Manual
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.10, No.7)
Though this motherboard provides a 4-Pin CPU fan (Quiet Fan) connector,
3-Pin CPU fans can still work successfully even without fan speed control.
If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3.
Serial Port Header
(9-pin COM3)(see p.10, No.18)
(9-pin COM4)(see p.10, No.19)
(9-pin COM5)(see p.10, No.23)
(9-pin COM6)(see p.10, No.22)
These COM headers support serial port modules.
FAN_SPEED
FAN_SPEED_CONTROL
GND
+12V
1 2 3 4
Pin Signal Name Pin Signal Name
1 GND 2 +12V
3 FAN_SPEED 4 FAN_SPEED_CONTROL
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
Pin Signal Name Pin Signal Name
1 DDCD#1 2 TTXD1
3 GND 4 RRTS#1
5 RRI#1 6 RRXD1
7 DDTR#1 8 DDSR#1
9 CCIS#1