I just bought a new zotac gtx 580 for my system, I already an asus gtx 580 dcu2
My questions are :
1. Will I have any SLI issues because of different brands ? and slightly different clocks ?
2. Does my cards too close to each other ? Will it cause extra heat? (see the pic below)
Haven't got my psu yet (out of stock)

My questions are :
1. Will I have any SLI issues because of different brands ? and slightly different clocks ?
2. Does my cards too close to each other ? Will it cause extra heat? (see the pic below)

Haven't got my psu yet (out of stock)