From my understanding the power out from the power supply is switched so untill you power up the Mac II that socket is dead. Apple did it this way untill the Beige g3 desktop (where that plug is live at all times).
And yes, a dead set of PRAMs will keep a Mac II, IIx, IIfx from doing anything. There are 2 batteries, one keeps time and one helps the machine boot.
And yes, a dead set of PRAMs will keep a Mac II, IIx, IIfx from doing anything. There are 2 batteries, one keeps time and one helps the machine boot.