Super Simple Vertical GPU Brackets
thingiverse
Simplest and easiest vertical GPU solution EVER. After being frustrated at the lack of solutions, and not wanting to lose all my expansion slots OR cut my case up, I decided to design these. You will obviously need a PCI riser (cost me $20). I also bought some 90 degree angled cables, and then ran the female ends thru an expansion slot I left the cover off of, so I didn't have to do any permanent mods to the case. YMMV, but this actually dropped my GPU temp at idle by 3-4C degrees, and under load it dropped 10-12C. See misc notes for more details.
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