A little clarification please,did the rear case fan come with a molex(4 pin) and a 3 pin motherboard connector and did you plug them both in.
This could be important as the fan would only require one of these to be connected and if the motherboard was throttling back that fan ie slowing it down as the temperature was low it would do this by lowering the voltage and if both connectors were powered then a voltage would be applied to the motherboard in reverse and this could damage the controller circuitry on the motherboard.
Oh crap I think I did plug both. Kept connecting stuff automatically out of habit. I think that's what caused it. (Stupid me. I didn't know either must be plugged and not both. The darn thing didn't come with any instructions/manual and I just plugged it where it seemed logical)
I took everything out. All the basic stuff works. CPU fan spinning, mouse and keyboard lights up. but it still won't boot/ no display with tv plugged to the mobo's VGA and the power button work in turning the rig off but won't work in shutting it off.
Did i accidentally kill my board? Or can it still be saved?
(Kinda hard finding an am2/am2+ Board now)