Re: Apple IIgs motherboard pinout

[Rubywand <rubywand@swbell.net>]

Jose Ricci writes ...
> 
> Hi,
> 
> I need to know the pinouts for the internal connectors (power supply,


GS Motherboard power connector

  _
 | |
 |7|  -5V             0.25 A
 |6| -12V             0.25 A
 |5| +12V             1.0 A
 |4|  +5V             4.0 A
 |3|  No connection
 |2|  GND
 |1|  GND
 |_|


The pins are viewed as above when you are sitting in front of the
computer, i.e. 7 is closest to the back of the motherboard.



> speaker, fan, etc) in the rom3 motherboard. I own one that I would like to
> put in a PC case to get a stronger power supply and cooler operation.

     Speaker polarity should not matter in connecting to a speaker in a PC
tower case except with respect to any other speakers you have connected. If you
leave the IIgs speaker connected, experiment with swapping around the leads to
one speaker to get the 'fullest' sound.

     PC cases usually include two or three fans, which should supply enough
cooling without using the +12V DC "Fan" connector on the IIgs motherboard.



> Also, if someone have made this before, I would appreciate some advice.
 ....

     Supertimer has moved a IIgs to a PC tower case. He may have some other
things to suggest.



Rubywand