ATX, WTX and other standard and proprietary power supply (PSU) cables connectors  > Apple pinouts
Available at location J12 on the Apple Macintosh Classic logic board?

14 pin connector at the motherboard

Pin Name
1 +12 volts
2 + 5 volts
3 + 5 volts
7 Sound
8 -12 volts
9 PWM (Brightness control signal)
10 Ground
11 Ground
12 Ground
13 Ground
14 Ground


14 pin unspecified connector layout
14 pin unspecified connector
According to 5 reports in our database (5 positive and 0 negative) this pinout should be correct.

Is this pinout
Source(s) of this and additional information: Apple Tech Info Library 6532: Macintosh Classic, Internal Power connector Pinouts at Apple TIL homepage, from Hardware Book
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