What are your system specs? How did you have "problems" getting the RAM to fit? I know some Asus boards have a static retention pin for the memory, is that the issue?
also, try clearing/resetting the IOS and going from there.
Last and most likely in my opinion: The memory is unsupported. Asus boards can be picky about what memory they use/like. Was the Kingston triple channel and the new stuff dual channel? Other way around?
Try those things and come back with those answers and we can go from there. Welcome to the community.