The Tower of Prisma
Solved a lot cooling issues this way and freed up some rack real estate in the process.
Mounted this way the boards are running about 60F cooler.
On to OC'ing them.
Sorry about the blur, was standing on a chair and I'm an old fart.

I like it. I was thinking of something similar the other day, but hanging instead of standing. A Prisma "batcave" of sorts.