Hello.
With FSP 1000W 80 Gold ATX 3.0 PSU should i use the special cable from the GPU to connect the vido card to the PSU,or to use the ATX 3.0 cable from the PSU.Thanks.
Do you mean use the adapter even though you have the appropriate cable? No, just use the one that came with your power supply, that is what it is for. The adapter is for older PSUs that aren't ATX 3.0