Did the exactly same jump, from an xfx 6600xt to a sapphire pulse 7800x, and finally i can enjoy maxed out vr games and can i use my 144hz monitor to the max!

So, After some trying, i found that they can be plugged together and boot, as long as i don’t plug an hdd to the Amazon card (the One with the older firmware). I think i have tò change firmware, somebody knows another way other than flashing It with freedos?

That’s what also happens to me, if i put both cards in my i5 4590t system they work without problems.