I have some Meanwell SE-450-12 an SE-600-12 PSUs. I want to use them to power some bitcoin miners I have that require 4 6 pin PCIs and run at 580w max power. I can clock down to work in the range of the PSU, but how do I get the PCIs on? Is it removing the molex end and splicing onto the terminals? http://www.amazon.com/Hama-Power-adapter-internal-Express/dp/B000JIGJR6/ref=lh_ni_t?ie=UTF8&psc=1&smid=A3IDT9F5A1GWX6