hi all . I have a packard bell club 50 400ghz . My question is i have been told by a m8 of mine that i can up the speed of my pc from 400ghz by going into the bios setting and changing the ghz setting to 1000 ghz & that will speed up my pc to 1000 ghz is this true? or is he taking the pxxs?. or is he right? will doing this harm my pc ? many thank;s