Need advice on this error on particular.

[em4nuel]

This is my build. I was thinking on buying a second gt970 to do a sli, but in part picket it gives me an error.

https://pcpartpicker.com/list/mGFmCb

Thanks in advance for any help.

 

[camieabz]

It's an issue, rather than an incompatibility. It's suggesting that the PSU selected has only one pcie6 connector, and an SLI setup requires two.