User`s guide

Slot 7 to the Ground plane. (You may need to scrape through green insulating
lacquer to solder to the Ground plane area.)
+5V: On the bottom side of the motherboard, connect two #16 gauge Red wires to
the +5V point of the Power Connector socket. Connect the other end of one +5V
Red wire to pin 25 of Slot 3; connect the other end of the second +5V Red wire
to pin 25 of Slot 7.
+12V: If you have any cards which are likely to draw heavily on the +12V line,
then, on the bottom side of the motherboard, run a #18 gauge White wire from the
+12V point of the Power Connector socket to pin 50 of the Slot in which the card
is normally located. Otherwise, just run an #18 gauge White wire from the +12V
point of the Power Connector socket to pin 50 of Slot 7.
Check your connections. One quick check is that the GND and +5V wiring to
Slots 3 and 7 should be Black, Red (moving left to right) and Slots 3 and 7
should 'look the same'. Any +12V wire should be on the same side of the Slot
(i.e. the same column of pins) as GND. None of the wires should be connected to
a middle pin on any Slot.
Notes:
1. All wires are insulated.
2. When cutting wires, allow enough slack to permit routing each wire. You want
to avoid having a wire rest against pointy connections on the motherboard. Route
wires away from motherboard mounting holes and around places where the bottom of
the case supports the motherboard.
3. The case's bottom and back metal shields are something of a shorting hazard.
Replacing the motherboard is much easier if these shields are popped out and
ditched.
Once everything checks out, replace the motherboard taking care that no
wires are caught between a support point and the motherboard.
______________________________
From: Mitchell Spector
008- I would like to install an internal fan in an Apple
IIgs. I pulled a good looking fan from an old PC power
supply. It is an NMB "FLOW MAX" rated: DC +12V @0.14
Amps. Is this fan okay? How do I connect it?
The voltage rating is fine, the amperage level should be fine as well.
You can connect the fan to the two-pin connector near the back left side of
the motherboard. The pinout for the "Fan connector" is +12V and Ground. The +12
is the pin closest to the powersupply, or the pin on the left if you are facing
the GS motherboard from the front end. Most fan wires are color coded, so the
red wire goes to power and black to ground.