Good finally, i took an msi z170A gaming pro carbon

https://www.topachat.com/pages/detail2_cat_est_micro_puis_rubrique_est_w_cm_1151_puis_ref_est_in10095394.html

The price is high but can not find an asrcok btc h81.

The advantage is that I could put 7 gpu on that if.

Thanks for helping me .