TH55B HD
7
2.2 FAN
H
EADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
CPU_FAN1: CPU Fan Header
Pin
Assignment
1 Ground
2 +12V
3
FAN RPM rate
sense
1
4
4 Smart
Fan
Control
SYS_FAN1/SYS_FAN2: System Fan Headers
Pin
Assignment
1 Ground
2 +12V
3
1
SYS_FAN2
SYS_FAN1
1
3
3 FAN
RPM
rate sense
Note:
The SYS_FAN1/SYS_FAN2 support 3-pin head connectors; the CPU_FAN1 supports
4-pin head connector. 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 GND.
