Chapter 2: Hardware installation
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A70MD PRO / A68MD PRO / A70MG PRO
2.3 Connect Cooling Fans
These fan headers support cooling-fans built in the computer. The fan cable and connector
may be different according to the fan manufacturer.
CPU_FAN1: CPU Fan Header
Pin Assignment
1
Ground
2
+12V
3
FAN RPM rate sense
4
Smart Fan Control (By Fan)
SYS_FAN1: System Fan Header
Pin Assignment
1
Ground
2
+12V
3
FAN RPM rate sense
Note
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CPU_FAN1, SYS_FAN1 support 4-pin and 3-pin head connectors. When connecting with wires onto
connectors, please note that the red wire is the positive and should be connected to pin#2, and the
black wire is Ground and should be connected to pin#1(GND).
2.4 Install System Memory
DDR3 Modules