Heyo, so I ran into a problem in my life that I was wondering if someone could shed some light on. I recently received a Fury HyperX 4 GB RAM stick that I had ordered not to long ago and planned on putting it in my desktop computer (I mean, what else would you do with RAM sticks o,O). How ever I came across a problem which was that I didn't know which slot my new RAM stick should go in, in a list order heres all the information that I know of which partakes in this situation: I know that this Fury HyperX 4GB Ram stick is compatable with my computer (My computer is an Acer Aspire desktop) If more information about the RAM stick is needed, heres the amazon page: http://www.amazon.com/Kingston-HyperX-FURY-1600MHz-DDR3/dp/B00J8E908M I already have 1 4GB RAM stick in the first slot of the four RAM slots that had came with the desktop it's self. Overall my question is: Which slot should this Fury HyperX 4GB RAM stick go in, and where should the original one that came with the computer go? If anyone could answer this that would be extremely helpful, I lack knowlege when it comes to the computer's RAM slots.