I've got a Mame cabinet that I built over ten years ago. I'm going to move the PC to a virtual pin but want to keep the cabinet exclusively for about 100 favorite Mame games. I've got some LED's (trackball, buttons and coin door) that have been powered by molex connectors from my PC. Since my PC is coming out I'm going to go with a Pi setup for a while. I don't want to switch out the molex connectors. Can I put an old PC power supply and get the power that way? Any problems with the fact that the power supply is not connected to a motherboard? I saw that another option would be to buy a power converter that has a molex connector coming from it. Other options?
Thanks!