jh1523:

So I looked at the manual, and it says that: "PCIE3 slot will be disabled when PCIE4 slot is installed." Thing of it is, PCIE3 slot is an x1 slot--one of the ones that works. PCIE4 is an x16 slot, which doesn't work. Huh?

Anyway, the issue has changed. Now all 4 show up in aticonfig, but I can only get temps/clock speeds for 2 of them, and only those 2 show up in poclbm. I've got 2 cards mining now so as to at least do some, but I'd really like to get the others going. All help is appreciated, and thanks to those who have posted so far.