Nexcom NEX 883 User Manual page 24

Chapter 2: Installation
Backlight & Amp Volume Control
(7-pin BLT_VOL1)
(see p.8, No.4)
Pin Signal Name
1 GPIO_VOL_UP
3 PWRDN
5 GPIO_BLT_DW
7 GND
Copyright © 2011 NEXCOM International Co., Ltd. All Rights Reserved.
1
Pin Signal Name
2 GPIO_VOL_DW
4 GPIO_BLT_UP
6 GND
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.8 No.9)
Please connect the CPU fan cable to the connector and match the
black wire to the ground pin.
FAN_SPEED_CONTROL
CPU_FAN_SPEED
Though this motherboard provides 4-Pin CPU fan (Quiet Fan)
support, the 3-Pin CPU fan still can work successfully even with-
out the fan speed control function. If you plan to connect the
3-Pin CPU fan to the CPU fan connector on this motherboard,
please connect it to Pin 1-3.
(3-pin CPU_FAN2)
(see p.8 No. 8)
GND
13
+12V
GND
1 2 3 4
Pin 1-3 Connected
3-Pin Fan Installation
+12V
CPU_FAN_SPEED
NEX 883 User Manual