This has reassured my ideas i posted earlier in the thread about going 2-slot 3080 FE for the T1.
Tell you what guys, 3080 AIB designs are a big red flag for the T1 currently.
All the AIB i have seen so far have an exhaust in the back PCB, EVGA, MSI, Asus, etc. And since none of them fit in T1 in 2-slot mode, you'll have to configure the case for 3-slot. What happens then? No air gap between that back exhaust and PSU.
3080 FE is currently, in my opinion, the best fit for T1 case.
I believe we will have to wait and see.
I think 3 slot AIB cards will still cool better or almost the same as the FE in 2 slot mode with the PSU spaced away from it to give the back fan room to exhaust the heat. Plus, in 3 slot mode the AIB cards won't need the space behind the PSU because they use traditional means of exhausting heat, with little to no air going through the card.
Either way, I'm interested to see how it will work out, and I am rooting for the FE to work best, because it's the best looking 30 series card by far. I would test it myself, but I aint made out of money. If anyone wants to "donate" their cards or money to me so I can test this hypothesis that would be great.
Mount the PSU upside down with the power cable at the bottom, use the brass spacers to push the PSU outward to create more space behind the PSU, tuck the AIO tubes and PSU cables behind that new space. Rotate those CPU Block fittings so one is going down, one is going up. Do the power cables afterward for better cable management.
OP is in 3 slot mode so the spacers are not an option. I recommended OP on reddit to rotate the pump 180 degrees so the tubes fit perfectly, and the PSU can stay the way it is now (flipped). I ran a very similar setup to OP, so if they follow what I did they will be fine.
Airflow isn’t just where the fans are pointed - pressure is just as important.
I highly doubt the FE fans can make enough pressure to make up for how small of an air gap the exhaust has. I just don't see it working, as nvidia designed their cooling solution around airflow, and blocking off one of the fans is a great way to ruin that cooling solution. Spacing the PSU and having some fans at the top of the case should fix this though