3.9 Fan Connector
The ROCKY-3732EVS provides CPU with cooling fan
connector and chassis fan connector. These connectors can
supply 12V/500mA to the cooling fan. There is a "rotation" pin
in fan connector. This rotation pin is to get the fan's rotation
signal to system. So the system BIOS could recognize the fan
speed. Please be noted that only specific fan offers the
rotation signal.
• CN7/CN8 : CPU Fan Connector
PIN NO.
1
2
3
3.10
VGA Connector
• CN15 : 15-pin Female Connector
PIN NO.
1
3
5
7
9
11
13
15
¨ ¦ ¦
1 2
3
CPU FAN
Ground
12V
Rotation Signal
DESCRIPTION
RED
BLUE
GROUND
GROUND
NC
NC
HSYNC
DDCCLK
PIN NO.
DESCRIPTION
2
GREEN
4
NC
6
GROUND
8
GROUND
10
GROUND
12
DDC DAT
14
VSYNC
18
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