How do I know if Starcraft 2 is compatible with my pc?

My pc dont run smoothly all the games(Should i buy more ram or a cpu cooler)?

• My pc specs are: Amd Phenom II X4 965 3,40 GHz 4 gb of 1600hz ram AMD Radeon hd 6850 1 tera western digital hd I experience annoying lagging in games like Crisis,LA noire and others....My pc as far as i know is pretty good and i shouldn't have that kind of problems....I suspect its either the cpu temperature or i just have to buy other 4gb of ram... curently that i use opera web browser the memory usage is about 40-50%...When i am in a game i see that the usage is high..(around 80%) but this dont justify why the pc is laggy as soon as not all the memory is used.....I recall at the past that i didnt have put the cpu cooler tight enough and the pc often close down ...It pass 2 months till i understand that i have to fix the cooler and since then my pc never shut down again.....Maybe i fried partially the cpu???Is it even possible...???I am not experience the lag with all the games.....Starcraft 2 runs smoothly except some times.... I am planning to buy ZALMAN CNPS10X FLEX and 2 SCYTHE SY1225SL12SH SLIP STREAM 120MM CASE FAN for my cpu and i think its more thatn enough.....or if cpu temp is not the probles i will buy a pair of 2gb rams... What is your opinion about this matter????Can u please help me??? Thanks for your time Dimitris

• Answer:

  Get ram instead