>The only problem you are lilely to have is associated with the actual =
DC voltage
>present at that section just after rectification. 120VAC rectified and =
filtered
>with caps produces a nominal 120*sqrt(2) or 170VDC.  Many good PC power =
supplies
>will operate off of as low an AC voltage as 90VAC, giving the DC =
section a lower
>limit of 127VDC, which MAY mean that you could put 125VDC in and it =
would work
>out OK.

If the power supply is of the type that will accept a wide range of =
input voltage, then it would be OK to just operate it off the DC. If it =
has a switch to select between 115 and 230 modes, then it will not be OK =
to run it in the 115 volt mode. It may be worth trying with the switch =
set to 230V mode to see if the supply has enough regulation range, =
especially if you run significantly below maximum wattage, but I think =
you are wanting too much power to be able to do this.

Be careful if there is no switch on the outside of the supply. If it =
does not specifically state it will accept a wide input voltage range, =
then there will be a jumper of some sort inside to change voltage.

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