Yep. It'll be disabled.
You may have weird resolution issues until you get the drivers installed (I did), but that's normal and you shouldn't have any problem seeing enough to get the drivers. Do that basically first.
1. Turn off machine after d/l'ing newest drivers http://www.geforce.com/Drivers/Beta
2. Install card in slot
3. Connect the two 6-pin power cables (might wanna have some zip ties handy)
4. Close up box
6. When windows finds new hardware do a Nancy Regan and "Just Say No".
7. Install the drivers that you saved in Step 1
The latest beta is 290.53......latest WHQL certified is 285.62
I'd try the Beta 1st....fall back to the WHQL if ya have problemos