REPLACEMENT MOTHERBOARDS: Looking for replacement motherboard with i7 processors, upper end video, audio, blue tooth, and more

Apr 7, 2018
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Recently asked this question incorrectly by the answers I received, so I'll try again: Looking for a replacement motherboard which will replace the one I have in my notebook, with i7 7th generation processors with high-end video, audio, blue tooth, is there a company out there who builds these or has them built already and for sale? This is an area I've not delved into and uncertain where to look, thus my reason for asking the question in a forum like this. Again remember this is a notebook I'm asking about, thanks in advance for your help.
One of the two I'm asking about has a 15.6 screen, the other has an 18.4, cases are in great shape and would rather rebuild than purchase new.
 
Apr 7, 2018
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The motherboard to which I am hoping is made is the complete board, I'm not trying to take anything apart, use anything from the old board, simply want the motherboard replacement if there is one.