jpod1003 :
ThatVietGuy :
It just wouldn't work, no damage should be done though.
But to answer your question, no, you don't have to download anything or do anything fancy.
So should i just get any ram that's compatible or is it safer to get the same one?
The best bet would be to get the same one, but considering it's DDR3 you might have a hard time since DDR3 is discontinued.
Just try to find a stick that's as close as possible and hope for the best.