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Macintosh IIx on ATX PSU
- Thread starter bibilit
- Start date
It's pretty straight forward, except, the boot signal is inverted. Just match the wires like to like, except on the turn on signal wire, you'll need to run that through an inverter chip and supply the inverter from the 5 V Standby line. There are some articles for other Mac models over at xlr8yourmac.com.
If you get a chance I still have not been able to find the bad trace on my IIx that allows soft boot.
Make sure both batteries are new and at proper voltage, make sure board has been cleaned, make sure all caps replaced. I can "jump" mine to boot and shut down but wont start without jumping the power supply or battery trick.
Off and on are 2 seperate circuts. I would guess so the battery is only on one side so as not to drain it.
Make sure both batteries are new and at proper voltage, make sure board has been cleaned, make sure all caps replaced. I can "jump" mine to boot and shut down but wont start without jumping the power supply or battery trick.
Off and on are 2 seperate circuts. I would guess so the battery is only on one side so as not to drain it.
