Hey,

Thanks for the tip.

Repeat of the same.

On just the PS with the mb cable jumped - I get 1-4 revs of the PS fan, then nothing. It's like something clicks off in the PS as soon as it ramps up.

On the PS with one board attached - I get 1-4 revs of the PS fan, the board fan, and the two case fans, then nothing. Same kind of behaviour, almost like something clicks inside the PS as soon as it begins to ramp up.

Repeat for all boards.