I had this same issue. Only thing I had to change was to use longer screwsHey Josh,
I had to flip the DC jack on its head to fit with a 1070 msi card.
I had to mod the case a little.
Do you consider doing this small change to your future S4 batches ?
As most of us use the dell brick, it would add flexibillity if your buyers want to flip the jack and not have to cut the case as i had to do.