I didn't know eather but dodgydave a user u can find in the previous replays sent a link to me and i followed the instructions and it worked but every atx power supply is different and this metod works only if you have tl494 or ka7500 chip on the pcb so it has a chanse of working or not,but try it it' realy simple.OK, if you were able to add an adjustment function to this power supply I would very much appreciate if you would share that information. My examination of several computer power supplies left me thinking that I had no idea as to where to add an adjusting function. So if you can provide any information I would really appreciate it.