Accidentally cut wire between 2 pins in motherboard

As the title says , I accidentally cut a wire between 2 pins (or whatever they are called) and now my PC starts slowing down after 20-25 minutes when I open it. After I restart everything is back to normal but after 20-25 mins its the same again. Is there a way to fix the wire between them or I have to buy a new motherboard? (sry , my english isnt very good. I hope you understood what is my problem) the image is what im talking about ,(the red is the wire) ,I got the motherboard picture from google , so its not mine.
 

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