I have no temptation to play games. :O
How long do you think I can run the PC like this at one sitting? Hour? 2 hours?
I think I may underclock the card..
Well then if you don't game, that card will just sit there doing nothing but consume power. So why not remove it altogether? You want to reduce the load on the PSU as much as possible, right?
It would be difficult to predict for how long the system will run continuously. To know that, I guess you'll just have to take a test drive