Killert6969
Active member
I already had a newer ATX power supply hooked up to my Robotron. periodic reboots led me to believe the power supply was bad. I purchased a switching supply with williams conversion kit from arcade shop. Upon switching the supplies, I noticed a -12V wire being connected to the old atx switching supply. but on my new ps there is only +12v. Where would I connect this -12V wire on the new supply?