I am wondering if a normal 200V AC input ATX PSU can be converted to run on a 192V DC Rail, considering the enormous electricity my 16 battery online UPS is using it must be more efficient running the computers directly an the 192V DC rail and running the monitors on a seperate offline inverter line . I am not very familiar with how the ATX PSU works , but it understand the first stage involves converting the 200V AC Input to 200V rectified DC. anyone guide me if it is possible?