Motherboard or Power source on mother board.

[Rickeh]

This may sound stupid but here it goes..

When I plug the black power cored into my power source, it's OK. but once I connect the prongs to the white thing on the mother board it makes this really weird noise. Literally it sounds like "EEEEEEEEEE" but then when I unplug it, it goes "oooooo" and stops. When it's plugged into the motherboard, the green light doesn't show, but when it's not, the green light shows.

[homer]

but once I connect the prongs to the white thing on the mother board it makes this really weird noise

what prongs? what white thing? a picture would be nice.

[Rickeh]

but once I connect the prongs to the white thing on the mother board it makes this really weird noise

what prongs? what white thing? a picture would be nice.

When I connect the thing from the power souce into that it makes that weird noise.

[patio]

I certainly hope the power supply is NOT plugged in when you are attempting this...

[homer]

is that your motherboard in the picture? what is your motherboard make/model? what is your graphics card make/model?