Hack to convert from/to 110v to/from 220v main voltage. basics guide 400w atx power supply circuit diagram 110v 220v eevblog details here forum
Atx 400w schematic smps schematics troubleshoot wiring
400w Atx Power Supply Circuit Diagram - Wiring Diagram and Schematics
Hack to convert from/to 110V to/from 220V main voltage. Basics guide