Yes, seriously (for the 75%) Its like a code refactoring Mains power is dangerous and should be kept in a box separate from current limited lower voltage DC,

Yes, seriously (for the 75%) Its like a code refactoring Mains power is dangerous and should be kept in a box separate from current limited lower voltage DC, which could be on the mainboard instead. Nothing actually needs 12v, it all just converts locally to the desired voltage which is why the mainboard is already a psu