thx a lot great, i never thought the northbridge was the cause of the wifi problem on the hp amd systems. everything i have learned to do is due to experience and webresearch. my associate has an electrician degree but he doesnt have a clue on this hp issues. he taught me how to heat the video chip and he thinks the wifi issue is caused because the "lane" (i dont know how do u call this in english, but i actually mean the electric path on the motherboard) of the wifi goes in the same video chip lane. so by heating the video chip he fixes the wifi issue. he will be surprised when i tell him about the north bridge problem. by the way do u know how much temperature can the nvidia video chip resist? what is the hottest i can get without burning it? and regarding the problem with the northbridge: does it have to be replaced? or just heated? |