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Chapter 3: Replacing Pre-Installed Components 53
J3 Chassis Instruction Pin Header
FAN Signal Related Connector Pin Definitions
NOTE: The FAN signal naming is based on HW circuit design only. It might
be different from the system fan naming.
J4 Fan Connector
J5 Fan Connector
1 INTRU#
2GND
1PWM1
2 VCC12
3 FAN1_TACH
4GND
5GND
6 FAN2_TACH
7 VCC12
8PWM2
1PWM1
2 VCC12
3 FAN3_TACH
4GND
5GND
6 FAN4_TACH
7 VCC12
8PWM2