I've gone through and read most everything I could find about power supplies in the forums here. (Including the )  Outside of the fact that my brain is melting onto the keyboard as I type right now, I think I have a gist.   I'd like to try to summarize here to be sure I'm on the right track, and I also have a couple questions.    My MB-6582 has PSU option B.  I have all 8580s... I do have a couple 6581s but I don't have plans on using them.   I'll be assembling this supply as a project in a