Question about a converted computer power supply

[BrianG]

Post a pic of the supply if you can. Particularly clear shots of the internals (looking down) and the motherboard connector. Depending on the model, there may be ways to actually boost the voltage. Adding a load to the 5v and/or 3.3v line usually just makes the voltage more stable under load at 12v, but will still dip and may fall under the 11v lower limit of some chargers. I like getting the output anywhere from 12.5v up to 14.5v.