So, from an hardware point of view, I will never use more than one PCIe slot as I am not into multi GPU configurations. The only reason for me to go to a mATX board versus mini-ITX would be four memory slots instead of two. But this is something I can comprimise on ( lower speed 16GB modules instead of higher speed 8GB modules for a total of 32GB ). And because I will never go multi GPU, a SFX form factor power supply is more than enough.
I am also averse to air, or better, I am averse to not be able to carefully control its flow. I remember back then, before the M1 was released to ask you for straight panels for the M1 ( without any holes on them ). I hate air flowing trough the thing without me being able to control it. I solved partialy on the M1, by using a DIY circular duct that feeds the blower of the GPU ( so it pulls air from a single spot and that air exits from the rear ), I made also custom ducts for entrance and exit air to the PSU and the only unresolved problem is the CPU H80 radiator and fans. They suck air from inside the case and as the case is full of holes... well...
Anyway, back to the subject, my next build will be:
- Asus Crosshair VIII impact ( mini-DTX ) with a Ryzen 3-something ( no problem for the M1 )
- 240 watercooler Enermax Liqtech TR4 II 240 ( 39mm thick radiator plus push pull 25mm fans ) ( won't fit M1 in push pull )
- 2080ti blower type ( fits M1 ) or the MSI RTX 2080Ti sea Hawk X ( has a 120mm radiator plus blower, won't fit the M1 with a 240 radiator for the CPU )
- Two M.2 drives on the motherboard
- SFX PSU
So as you can see I can make this work on the M1 by forgetting the push pull on the Liqtech and using just a blower type for the GPU, or I could agree to use a slightly bigger case than I need and be able to fit all the cooling stuff. I may even go custom loop on a bigger case, as the Asus Crosshair VIII impact comes from factory with water cooling support.
To answer your question:
- I would be interested in such a case, albeit not for the use you intended it to.
For me, it would be a question of staying on a small case and humble on the cooling or going to a bigger than needed case and non-humble on the cooling. I would choose the later.
- As for the flow, I will plug all the holes ?