#: 12203 S12/OS9/68000 (OSK)
12-Sep-91 04:05:06
Sb: #12186-#$1000 doorstop
Fm: Scott t. Griepentrog 72427,335
To: Jim Peasley 72726,1153 (X)
Assumming you have only one board, and one (or two) floppies, the power
requirements of your system are *very* small. The 386 power supply, while
completely compatible (the MM1 PS is a standard PC design), needs a little bit
more load before it will fire up. This can be solved easily by any method that
puts more load on the power supply. If you have a 'spare' hard drive sitting
around (say something that doesn't work even, but spins), that would be ideal
to use as a load. Other alternatives include using a large wattage resistor,
probably somewhere around 50 ohm (I 'm gessing here - don't take my word!),
connected between +12 and ground. Since the MM1 and these newer 3-1/2" drives
use so little if any current from 12 volts, this is most likely the only
voltage you'll need to load. If that still doesn't work though, try putting a
load on 5 volts too. Obviously, a spare hard drive makes for the simplest test.
Let me know how you fare.
StG
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