can anybody tell me how to overclock my pc os-windows XP 2.6 Ghz cpu with 640 mb ram pentium 4 is overclocking harmful to pc ??? i saw my frnd's 3.0 Ghz pc , its vry much faster regarding that he have 256 mb ram !!! these days my pc using paging file 1.8 gb & sometimes it gets vry slow that it gives messages that virtual memory too low !!! so choosed system managed paging option !!! sometimes 5,6 softwares go simultaneously fine but sometimes in just 6 internet explorers it gets slow !!! is my pc working on only god's bharose & my ram isnt helping me ???