My mobo's BIOS(P5LD2) Deluxe has all these 3 settings. I read somewhere that it is recommended to disable all this 3 settings to improve overclocking stability. Is it true? I know Thermal Monitor helps to monitor overheating. If I disable this will it harm my CPU? I'm not sure about the other two features. Do I really need them? I'm using Pent D 930 overclocked to 4.0Ghz btw. Running 3 Orthos at the same time(Small,Large and Gromacs) for stability. Thanks.