I'm quite a novice at overclocking, but I've done a fair amount of research. All I've changed in my bios is the voltage, to 1.25v, and the core ratios to 45. I've run a test with the Intel extreme utility and it passed. Without sounding like I've answered my own question, is 1.25v ok to use long term? I mainly game and do the odd rendering in windows movie maker.