I have asus z87 deluxe was working fine with igpu of i5 4570 and amd 7470
I upgraded to gigabyte rx 470 and pc can't boot form first boot
when i press power button on i have error b2 ( with CSM enabled ) and error 97 ( with CSM disabled )
then after i press power button off and on again pc boot successfully ( may be from second time or 3 or 4)
and if i restart pc also working good
and if i shutdown without removing power cable and power on again it working good
only problem occurred with cold boot
