Installed new gpu now keyboard does not work

[beefybarn]

Got a problem that's driving me mad. Just taken out a 1070 Asus strix and put in an evga 1070 but now my corsair keyboard won't register any keystrokes, it lights up but that's all, mouse works fine, any advice.

 

[beefybarn]

All working now, had to plug in and restart while holding the esc key, don't know why it lost connection because of fitting gpu though.