hello,

I'm planning to set up a computer to mine Ether, with up to 3 way CrossFire cards. here are my questions

1. would the choice of OS affect mining performance (i.e. Linux vs Windows)?
2. can I add a non-crossfire card (basic graphic) to boot off of?
3. if I did boot off one of the CrossFire cards, would that affect the mining performance?
4. if I ran some virtual machines off this computer, would it affect mining performance?

thanks,

LO