I'm planning on building a mining rig with 3x Asus R9 280x in a obsidian 750d case (Full Tower). I'm also planning to use it as a "normal" computer so it's not a complete mining rig. Do you guys think it's possible to run 3 graphic cards in a closed case in terms of heat. How much does it differ from running it in a open case or in a mining rig.
I'm living in an small apartment so I don't really would like to have to much noise from the rig.