Im trying to over clock my Northwood P4 2.8C to 3.0 or if possible 3.2ghz. Im using a Gygabite Motherboard and PC3200 ram (2gig) In the bios, I can increase the frequency from 200 to 220 or higher ( max 300) but if it goes higher than 200 the PC wont start up and i have to reset the bios. I think I have to raise the voltage for the cpu, gpu and memory? I tried rasing it 1 level but it still didnt work. What am I doing wrong??? Do i raise the voltage then restart then raise the frequency to 220? Advice please! Im doing this for DOOM 3 and HL2 in case your wondering. My PC falls shy of the requirements for high settings. Basically I need a faster CPU and beter graphics card!