Apple Power Mac G5 water cooling pump pinout
Power Mac G5 pump pinout
The black wiring to the pump has a six pin connector with 2 blanks. Look at the connector to the pump:
[1_2_34]
1, blank, 2, blank, 3 , 4.
The pinout is as follows:
- 1 = ground
- 2 = V mot (variable), PWM?
- 3 = Tach output
- 4 = 12v motor
