Hi there, I am trying to build my own bench PSU with an old PSU from my computer and I would like to put a step up/down converter to control my voltage and current output. So the opperating voltage input for this boost module is between 10 and 40V and I think 24V is good enough for my use. Here is the question, can I use the -12V pin from my PSU as the ground and the 12V pin in positive to get 24V without any problem? Thanks for your help