Ram being used more now than before ?

[XxskaterjerkxX]

I just recently installed my new power supply cause my old one burnt out on me and iv come to notice that my ram is being used allot more than usual i have a meter showing me what my usage and i'm using 2gb of ram for just going on Google chrome and running windows 7. Looking at my processes under ram AND JUST chrome.exe *32 is using 155,512kb is it normal or is it something else and i don't see anything unusual running in the processes. Please someone help :/

 

[PsychoGamingLemon]

Scan for Viruses, it would most likely be background programs.

 

[XxskaterjerkxX]

i did what you said i use avg so i did a scan and 0 threats were found any other solution's ?