So I'm very inexperienced when it comes SLI and what are the requirements when it comes to running 2 cards at once. I just picked up a GeForce GTX 560 Ti DS Superclocked and will be installing it in my PC later today. I've been using a GTS 250. Am I able to run the 250 for physix and the 560 for graphics? Or am I only able to run the 560 solo?
The 250 will do a fine job handling the PhysX portion of the load. The 560 Ti is beefy enough to handle it without but it will run noticeably better freed of the PhysX load. Not like your spending money to go out and buy it so might as well use it.
But using PhysX card is not SLI. SLI is two identical cards connected by an SLI bridge. You won't be using a bridge.
Rosewill makes some good PSU's but not all of them are good/high quality.It's mostly the lower end stuff you should worry about from them.But if it's a older model I might question it because they haven't always made the higher tier PSU's quality units.