i was reading that it is recommended to use the update. It has various updates for you sytem in it. I have always put it on both of my systems when doing a clean install.
Has anyone checked out this bios from December. It looks to be from clevo.
http://www.techpowerup.com/bios/?search=mobility
It might be just the x800 bios we already tried.
i have heard of people doing the copper mod and having this problem. when the copper expands it puts pressure on the core and the memory and then causes issues. that could have been it.
i havent replaced the 700m but i have replaced the keyboard and it was very easy. I have replaced the lcd in my 9100. i think if you take your time you should be fine.