Hello, I am interested in upgrading my PC's graphics card from the geforce GTS 250 that it came with to the new geforce GTX 660 ti. I know it will fit in the case but I'm not sure my power supply is enough for the new card. Here is my model of PSU: http://www.itwinkle.com/hp46posu51.html
The gtx 660 ti says it needs a minimum of 450W and this PSU has 460W. The new card also needs two 6 pin connectors but my PSU only has 1. Is there an adapter for this?
I don't really want to buy a new power supply so I am hoping this will work.