If you don't put the spongy pads back on the four chips underneath the motherboard you will have two rings. If you don't have the pads you can use a rubber brick eraser and cut four pieces about a quarter of an inch of thickness and and tape tem to the chips.
I had that similar prob and what I did to fix it was I took a rubber eraser and sliced it up so there was four 1/4" pieces and fold up some electrical tape and taped them to the bottom four chips underneath the mother board and it's been working great ever since