So with that out of the way, and I just asked this question, which is pretty much why I posted about the LEDs in the first place--with the caveat that I am learning good stuff--how could a 12V LED strip fry the motherboard's FETs like mine got fried? I don't want to do that again.
It's not immediately obvious to me, if the 2 Amp rating, is PER colour, i.e. it could supply up to 6 amps, since RGB x 2 Amps = 6 Amps. Or do they mean a total of 2 amps, across all 3 colour lines (RGB) ?
I think you said it was 60ma per Led colour section. So how many sections were there all together ?
(Really it should be ONE thread, as I'm recalling the details from your other thread).
As to faults.
Either the motherboard was faulty, and you always met all its specifications/requirements
Or, the total Led units x current per unit x max colours on at same time, overloaded it.
Or, the Led chains you connected were/are faulty, and used too much current.
E.g. Current limiting resistor(s), wrong value (too low), or current limit resistor(s) shorted out or other RGB chain faults, such as mis-wiring etc. So that it exceeded the 2 amps limit, overloaded the motherboard and caused the drivers to over-heat and burn out.
I would presume, there isn't any current limiting/protection on the motherboard, for the RGB chains.
Because of the parallel connection nature of the Led chain(s), it would just take one section to be faulty, to overload the motherboard.
Were all the colours lighting up as expected initially, or did one or more colours fail or be dim, right at the beginning ?
If so, then the motherboard output drivers (probably fets/transistors), would/could over-heat and break.
(The other thread may have the details, but I'm sticking to this thread at the moment, trying to combine lots of threads, gets too complicated/confusing).
But, maybe I should start posting in the other (motherboard) thread, and leave this one ?