Right, so my system has 8GB of DDR3 RAM installed. In theory, this should be fine, but when the computer is on idle, and only running google chrome with 4 tabs open and the steam client, 50% of my memory is in use. Earlier, I had just chrome (4 tabs) open in the background while running minecraft, and I received warning that my system was almost out of memory. I have had the computer for just over a year, and have never had this issue.
P.S the rest of my system is as follows:
Intel Core i5 4460 @ 3.2GHz
GTX 960 SSC
8GB DDR3 RAM @ 1333MHz