I was looking into buying a backplate for my GTX 970(reference PCB) I was looking at 3 different ones EVGA's which only works on EVGA cards, Heatkillers which doesnt help with cooling at all and EKWB which says it only works if you have an EKWB water block. how did they make it incompatible? I am looking at my GTX 970 and it has the screws in the same place the FCGTX 970 backplate does, so couldnt I just take them out put the backplate on and put the screws back in? I am very confused....