built it yesterday for litecoin. turns out it munches more than 1200W so have to install a 1500W PSU for it. four asus 7970s, athlon 215 CPU. i pulled some industrial mechanical switches from a '60s generator control box. need to find analogue amper gauge for it too. took a whole day to cut out this weatherproof electrical meters box. another day to assemble. im tired.