leonix 007 thanks a lot for your advice, i already test each card alone with each riser their work fine, i made a 3rd windows clean install this time with both gpu connected and bios tweaks just list pci as gen 2 did fresh install,

Now i can see my both gpu did a manual driver installation on both everything looks fine and running finally, now installing claymore and patches to modified bios will see if everything goes well, ill keep on touch...

Thanks