I would certainly recommend a heavy-duty power supply in the 500-650 watt range at least, as it has to provide the juice for not just your graphics card, but all the other bits and pieces too. One thing to bear in mind is adequate cooling and ventilation, as you've discovered, it gets dusty in there and that does nothing to help performance, and can, in extreme circumstnces cause your components to fry when the heat can't get away past all that dust!
Most motherboards have plenty of pins spare, from which you can power an auxilluary fan, and these are very inexpensive, so if your PC case has a spare vent grille with no fan using it, you might want to start doing so.
|