It would be near impossible to take a laptop and recycle hardware onto a desktop motherboard. The reason why you can't reuse the parts is because of the interfaces used. Open a laptop and then a desktop and you'll see that the parts go together totally differently. For some items you could build custom connectors but that is hardly worth it.
If the laptop is overheating (or other simple problem), it isn't impossible to remount the laptop in a desktop case. You'd then have to plug in a USB mouse & keyboard, and plug in a display to the external HDMI/DVI/Display port. Then add a couple case fans blowing on the overheating part(s) and your laptop will again serve a useful purpose. I did this once with my old laptop.
However, if any...