The Indomitable said:
Well, without fans or USB devices, it came out to 535W (without overclocking that is). You probably know your computer better than I, so you might want to check the calculator for yourself.
I still can not get the GT 640 to work with my GTX 680. I did get a new 950 WATT power supply. http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028
. The power supply install went well, computer boots thru bios screen okay then blank screen. It does not matter which DVI port I use, the BIOS will show and when the splash screen should appear I get a blank screen. To clarify, the screen is not intirely blank. Ther is the smallest sliver of color (1 pixel by 10 pixes horizontal) in the upper right screen corner. When the screen blanks the HDD light also stops.