Hi, I've recently ordered an MSI R9 280, to replace my cruddy old GT620, and a couple google searches of using physX with AMD GPUs later, I've considered throwing my GT620 back into my build as a physX slave. I was wondering how I would go about this, and if I would need to download old drivers for my GT620 to run it with the 280. Any helpful guides/tips would be appreciated, thanks. 
