Read the PSU 101 sticky, that should clear up some misconceptions.
If your just going to use a single 8800gts in your system this psu will be more then enough. If your planning on upgrading to something like an 8800gtx in the future or are planning on some heavy duty oc'ing get either this psu, or this psu.
There are legit psu's for a decent price from the egg that will handle the 8800's, but take a close examination of your future needs...imo you need to upgrade correctly .But yes,your lookin at the money train,new psu gl.
When you mount your graphics card to your motherboard into the pci-16 slot, that connection provides up to 75 watts. You also will have a connector to your gfx card that will add power. This is all from your 12 volt rails, meaning that youll have more than one access point for 12 volt power. Each access point carries so many amps, depending on your psu. The total of all the rails should read more than what your gfx cards needs are
Yes PSU 101 is good to start but I couldn't find what the 12v rails actually are. Is it the cable go to the mainboard ? Or the power connector for the pci-e graphics card ?
I have Tagan Easycon 480w. It says 20A on two 12v rails on split mode and 30A combined. My mobo has a 20+4 pin and an extra 4 pin next to the CPU. And the psu has 2x6pin power connectors for pci express graphics cards. I have x1950xt and ATI says it needs a psu with 30a.
I believe i wouldn't use split mode but i wonder what that split mode actually does. What benefits from split mode ?