The MSI wnd has in built o/c capability upto 24% in the BIOS - the cpu can handle this no problem it can take upto over 100c plus the wind has better ventilation than most netbooks. - no real need to modify cooling - you can if you want but dont see the point as its sold with o/c capability. How did you upgrade memory - did you add extra 1GB or add a 2GB stick and disable the onboard. If your PC will not o/c stable at 24% with extra 1GB its probably caused by the mix of onboard (no so good quality) and extra 1GB stick. Best is add a 2GB stick - disable onboard (must do to boot) the o/c - should do 24% no problem. I run my at that all the time. Get lastest drivers for whatever system you have installed and optimise settings - plenty...